Auto SPT Hammer RDS Engineering Manufacturing Standard Penetration Test (SPT) drop hammer that is hydraulically powered and entirely automated. The hammer produces a reliable and precise blow count using a 140 lbs driving force (slug) dropped from 76 cm, 760mm Adjustable. Both a swing-arm mounted variant and a solo winch line device are offered for the hammer. Both designs may be used for practically any equipment. Compared to conventional manual SPT procedures, the fully enclosed, hydraulic motor powered hammer is far safer. The straightforward, durable design minimises maintenance while maintaining great efficiency. For all RDS rig variants as well as typical rival equipment, we provide mounting and hydraulic connection kits. According to ISO 22476-3:2005, the RDS automated SPT hammer delivers exceptionally reliable and accurate Standard Penetration Test results. There are no wires or ropes to obstruct the weight's free fall, and a viewing hole enables you to confirm the 30 inch fall height. All moving parts, including the region that is likely to be hit by the weight or anvil, are also encased for safety. RDS Engineering installs more than 80 Auto SPT Drilling Rigs. Geotechnical Testing Equipment as per ISO 22476-3:2005 RDS Auto SPT Hammer Technical Specifications Hammer drop height: 760mm, 76cm, 30 inches, Hammer piston weight: 63.5 Kg, 140 lbs Blow per minute: 10-30 Adjustable System Energy test ratio (ETR): 67% - 80% Adjustable System SPT Assembly: SPT Sampler, SPT tube, SPT shoe SPT Anvil Connection: AW / Customize SPT Automatic Hammer Benefits 1. Easy to Upgrade Your Existing Rig 2. Tests with high reliability and accuracy (63.5 kg x 760mm drop) (140 lbs. x 30" drop) 3. Safety: the hammer's casing contains all of the working parts. 4. Can be applied to the majority of rigs (geotechnical, rotary, diamond core rig) 5. Accuracy results in N-value and SPT test, SBC Test Easy to Set Up The SPT (Standard Penetration Test) Hammer assembly is kept to the right of the drill frame and secured in place for travel. The Hammer must be raised using a hydraulic cylinder or hoist and placed above the drill rod in order to work. The Hammer case is lowered into the driving position so that it may be rapidly positioned above the borehole. Simple to Use The Hammer's design is straightforward, and a single operator can operate it successfully. Insofar as their performance doesn't depend on operator-controlled adjustments or monitoring, RDS SPT Hammers are totally automated. The weight of the slug is raised hydraulically via a continuous chain; Due to the Hammer case's ability to "float" in the self-compensating rack or on the hydraulic cylinder, the sampling procedure may be followed regardless of the material density. For better safety, the hitting surface is kept totally enclosed. The normal penetration test is carried out by the RDS Self-Compensating SPT Hammer without adding any extra weight or pressure to the drill string. This eliminates the possibility of retroactive loads or forces being applied to the drill string each time the mechanism cycles. FAQ Terms & Conditions of Ordering: Quality warranty: Our products are made of high-quality steel and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally need 15 days Transportation: By air, By Express or by sea according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, normally it takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available at any time 6. Quality & Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp at +91 7600898210 C. Free replacement will provide once the failure is confirmed caused or our product quality; Not satisfied with a refund. For more information, please contact: RDS Drilling Rig. WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com Website: https://www.rdsrig.com

Model: RDS-60 Mini Portable Trolley Mounted Hydraulic Diamond Core Drilling Rig Application Use: Geotechnical, Mining Core Drilling Capacity: Maximum Depth: 60 Meters (Soil and Rock) Hole Diameter: 50mm to 200mm Drilling On: Any Type of Soil, All Types of Hard rocks Like iron, granite, quartzite, bolder, etc. Power By: Tractor PTO Shaft Transmission: 5 forward gears 1 reverse gear (5F+1R) Vertical gearbox Rotary Head (PTO): Rotation By Hydraulic 315 Motor, variable speed: 50 to 600 RPM, Max Torque: 200 Nm Water swivel: Stainless steel, Hard Chrome Shaft Water pump: Centrifugal Pump: 2.5" x 3" flow; Triplex high-pressure piston mud pump: 80–150 LPM (Optional) Hydraulic (6-month warranty) Feed: 1 Hydraulic Cylinder with auto-feed function Feed Force and Speed: Pull Up: 5500 kg/2000 psi, and Pull Up: 15 Meters/minute Pull Down: 3500kg; Pull Down: 19 Meters/minute Mast: 2 Hydraulic Cylinders Leveling: 4 Hydraulic cylinders; proper levelling drill points with a separate lever; Manual 4-screw jack (Optional) Hydraulic Pump: Double Hydraulic Vane Pump Tank capacity: Hydraulic oil, 100 Liters Hydraulic Motor: 315 Hydraulic Motor with wire rope winch pully for SPT Control Box: Hydraulic Control valve with a separate microlever operational Easy to operate Structure, Safety and Extra Accessories Chassis: ISI Heavy 5” C-Channel Structure Proper balanced Mounting: Trolley mounting with two MRF tyres Mast: 8-foot-long channel structure with ISI Heavy 2” C channel Box type; Drill Rod Handling: Rod Handling 5 feet 1.5 meters Diesel tank: 40 Liters Safety: TPI Approve All part Safety Cover All Rotating parts safety grill Additional accessories: Night Lights, Tools Box, Drill Rod stand, 36, 24 pipe wrench, Wire Rope Pana Set, foot valve, section pipe, Return and steel valve, Rig Dimension and Weight Length: 9 feet Width: 4.5 feet Height: 6.5 feet Weight: 1500 Kg Geotechnical Testing Equipment as per ISO 22476-3:2005 SPT Semi-Auto Hydraulic Motor with wire rope winch pully for SPT SPT Assembly: SPT Sampler, SPT tube, SPT shoe SPT Anvil Connection: AW / Customize U.D.S. Tube (Shelby Tube): Dimension Size: OD-73mm, ID-69mm, Length-600mm Dimension Size: OD-106mm, ID-100mm, Length-500mm Core Drilling Mining Equipment Core Barrel Support: Ax, Bx, Nx, AQ, BQ, NQ, NMLC Series Support Single, Double, and Triple Tube Core Barrel Support Casing Support: Ax, Bx, and Nx Casing Support Drill Rod: Aw, Bw, Nw, Nq All Types of Drill Rod Support RDS API Drill Rod: Special design for RDS-60 RDS API Drill Rod: Carbon steel seamless pipe, 60mm OD, 50mm ID, 5mm thickness, Weight 15 kg RDS API Drill Rod Adapter: En39 material Adapter With harness tampering, CNC Threading and 12 shaping parts

What is an Inflatable Packer? They function as a tool to assist in the isolation of boreholes. For high-pressure injection in geotechnical applications, inflatable packers are employed to create leak-proof foundations inside rocks and other unstable terrain. In order to ensure the quality of foundations, they can also be used to test the bedrock. When consolidating grout to make it impermeable and for other consolidation tasks, inflatable packers are used to inject cement into the grout. tested with lugeons as well. RDS Engineering Manufacturing two type packer two variations 1. single packer – used for below packer injection 2. double packer- used for micropile injection Inflated with water, air, or nitrogen. Features of Inflatable Packers: • Available as single-packer or double-packer configurations. • Suitable for TAM Pipe grouting. • Single-packers are easily converted into double-packers. • Inflation Elements can easily be replaceable on site. • Inflation element length can be customized as per requirements. Our patented packers are available for: Inflatable packers come in diameters of 1′′–2′′, 2′′–3′′, 3′′–4′′, 3′′–6′′, 4′′–7′′, and 5′′–8′′. Lengths range from 12′′ to at least five feet. They may expand by two times from their run-in diameter thanks to the sliding head design, and they often provide a longer seal than a mechanical packer. These packers contain built-in tube scrapers that operate each time the packer is deflated and remove extra grout that has clung to the exterior of the centre tube. Choose the right packer Dia 28MM OD Minimum Bore Hole Diameter 35MM Maximum Bore Hole Diameter 50MM Inner Tube Diameter 16MM Connection Port 3/8" BSP Inflation Port M6 x 6OD Dia 32MM OD Minimum Bore Hole Diameter 35MM Maximum Bore Hole Diameter 50MM Inner Tube Diameter 16MM Connection Port 3/8" BSP Inflation Port M6 x 6OD Dia 38MM OD Minimum Bore Hole Diameter 42MM Maximum Bore Hole Diameter 60MM Inner Tube Diameter 20MM Connection Port 1/2" BSP Inflation Port M6 x 6OD Dia 44MM OD Minimum Bore Hole Diameter 50MM Maximum Bore Hole Diameter 80MM Inner Tube Diameter 20MM Connection Port 1/2"BSP Inflation Port 1/8"BSP x 6OD Dia 56MM OD Minimum Bore Hole Diameter 60MM Maximum Bore Hole Diameter 90MM Inner Tube Diameter 27MM Connection Port 3/4"BSP Inflation Port 1/8"BSP x 6OD Dia 74MM OD Minimum Bore Hole Diameter 80MM Maximum Bore Hole Diameter 120MM Inner Tube Diameter 27MM Connection Port 3/4"BSP Inflation Port 1/8"BSP x 6OD Dia 84MM OD Minimum Bore Hole Diameter 90MM Maximum Bore Hole Diameter 130MM Inner Tube Diameter 27MM Connection Port 3/4"BSP Inflation Port 1/8"BSP x 6OD Dia 102MM OD Minimum Bore Hole Diameter 110MM Maximum Bore Hole Diameter 180MM Inner Tube Diameter 35MM Connection Port 1"BSP Inflation Port 1/8"BSP x 6OD Dia 130MM OD Minimum Bore Hole Diameter 140MM Maximum Bore Hole Diameter 230MM Inner Tube Diameter 35MM Connection Port 1"BSP Inflation Port 1/8"BSP x 6OD Dia 170MM OD Minimum Bore Hole Diameter 180MM Maximum Bore Hole Diameter 320MM Inner Tube Diameter 35MM Connection Port 1"BSP Inflation Port 1/8"BSP x 6OD We utilise an equipment called a packer to isolate boreholes. For various sectors, like tunnelling, mining, the oil and gas industry, etc., borehole isolation is essential and advantageous. They aid in isolating the annulus in the oil and gas industry between the tubing/casing and the production well. They provide corrosion protection for the tubing and casing. They assist us with well completion operations including cementing, fracturing, and acidizing. They are used for hydraulic fracturing in the mining industry. They are used for evaluating permeability. They are employed in solution mining. Pressurised cement grouting is used in tunnelling. The TAM Grouting. FAQ Terms and Conditions of Ordering: Quality warranty: Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally, you need 2 days Transportation: By air, By express, or by sea, according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, it normally takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL, UPS, TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available in any time 6. Quality and Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp +91 7600898210 C. A free replacement will be provided once the failure is confirmed to be caused by our product quality or if you are not satisfied with a refund. For more information, please contact: RDS Drilling Rig WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com

RDS Engineering Manufacturing Impregnated TC Tungsten Carbide core bits for Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. A TC Tungsten Carbide Core Bit is a specialized drilling tool used for coring or drilling holes in various materials, such as concrete, masonry, and other hard surfaces. The core bit is typically composed of a steel body with Tungsten Carbide or a Tungsten Carbide tip. Tungsten Carbide on the core bit provides the cutting action and makes it suitable for drilling through tough materials. TC Tungsten Carbide core bits are commonly used in the construction, mining, geotechnical investigation, and geological exploration industries. They are designed to be used with specific drilling machines, including hand-held and rig-based coring machines. The kind of material being drilled, the strength of the drilling tool, and the intended drilling speed are all variables that must be taken into consideration when choosing a TC Tungsten Carbide core bit. NMLC triple tube TC Tungsten Carbide Core bit size core diameter of 48 mm and a Drilling hole diameter of 76 mm. TC Fada Tungsten Carbide Core bit TC compression Tungsten Carbide Core bit FAQ Terms and Conditions of Ordering: Quality warranty: Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally, you need 2 days Transportation: By air, By express, or by sea, according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, it normally takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL, UPS, TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available in any time 6. Quality and Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp +91 7600898210 C. A free replacement will be provided once the failure is confirmed to be caused by our product quality or if you are not satisfied with a refund. For more information, please contact: RDS Drilling Rig WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com

RDS Engineering Manufacturing Impregnated TC Tungsten Carbide core bits for Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. A TC Tungsten Carbide Core Bit is a specialized drilling tool used for coring or drilling holes in various materials, such as concrete, masonry, and other hard surfaces. The core bit is typically composed of a steel body with Tungsten Carbide or a Tungsten Carbide tip. Tungsten Carbide on the core bit provides the cutting action and makes it suitable for drilling through tough materials. TC Tungsten Carbide core bits are commonly used in the construction, mining, geotechnical investigation, and geological exploration industries. They are designed to be used with specific drilling machines, including hand-held and rig-based coring machines. The kind of material being drilled, the strength of the drilling tool, and the intended drilling speed are all variables that must be taken into consideration when choosing a TC Tungsten Carbide core bit. Nx TC Tungsten Carbide Core bit size core diameter of 54 mm and a Drilling hole diameter of 76 mm. TC Fada Tungsten Carbide Core bit TC compression Tungsten Carbide Core bit FAQ Terms and Conditions of Ordering: Quality warranty: Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally, you need 2 days Transportation: By air, By express, or by sea, according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, it normally takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL, UPS, TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available in any time 6. Quality and Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp +91 7600898210 C. A free replacement will be provided once the failure is confirmed to be caused by our product quality or if you are not satisfied with a refund. For more information, please contact: RDS Drilling Rig WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com

RDS Engineering Manufacturing Impregnated diamond core bits for Diamond Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. Diamond core bits are commonly used in the construction, mining, geotechnical investigation, and geological exploration industries. They are designed to be used with specific drilling machines, including hand-held and rig-based coring machines. A diamond core bit is a specialized drilling tool used for coring or drilling holes in various materials, such as concrete, masonry, and other hard surfaces. The core bit is typically composed of a steel body with diamond-impregnated segments or a diamond-encrusted tip. The diamonds on the core bit provide the cutting action and make it suitable for drilling through tough materials. The kind of material being drilled, the strength of the drilling tool, and the intended drilling speed are all variables that must be taken into consideration when choosing a diamond core bit. Diamond core bit for NMLC triple tube size core diameter of 48 mm and a Drilling hole diameter of 76 mm. 55 carat Diamond Core bit NMLC triple tube 70 carat Diamond Core bit NMLC triple tube FAQ Terms and Conditions of Ordering: Quality warranty: Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally, you need 2 days Transportation: By air, By express, or by sea, according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, it normally takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL, UPS, TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available in any time 6. Quality and Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp +91 7600898210 C. A free replacement will be provided once the failure is confirmed to be caused by our product quality or if you are not satisfied with a refund. For more information, please contact: RDS Drilling Rig WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com

RDS Engineering manufactures diamond Reaming shells for NMLC triple tube for Diamond Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. The reaming shell, which is immediately above the diamond core bit, keeps the drill hole's outer diameter constant. The diamond core bit is joined to the core barrel by the diamond reaming shell. The reaming shell effectively reams the hole because its outer diameter is only a little bit larger than the core bits. The reaming shell serves as a link between the core bit and the outer barrel and is a crucial component of a diamond drilling system. In addition to stabilizing the drill string's bottom, it reams the hole to the right size. The drilling crew should regularly inspect the reaming shell's outer diameter since a worn-out or smaller reaming shell will cause the drill bit and drill string to become stuck. RDS manufactures great-quality synthetic and natural diamonds that are placed in a matrix with great resistance and is used to create reaming shells. On the leading edges of the ring, friction-resistant tungsten carbide inlays offer extra security and a longer lifespan. Diamond reaming shell for NMLC triple size core diameter of 48 mm and a Drilling hole diameter of 76 mm. FAQ Terms and Conditions of Ordering: Quality warranty: Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally, you need 2 days Transportation: By air, By express, or by sea, according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, it normally takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL, UPS, TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available in any time 6. Quality and Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp +91 7600898210 C. A free replacement will be provided once the failure is confirmed to be caused by our product quality or if you are not satisfied with a refund. For more information, please contact: RDS Drilling Rig WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com

RDS Engineering manufactures diamond core Reaming shells for Diamond Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. The reaming shell, which is immediately above the diamond core bit, keeps the drill hole's outer diameter constant. The diamond core bit is joined to the core barrel by the diamond reaming shell. The reaming shell effectively reams the hole because its outer diameter is only a little bit larger than the core bits. The reaming shell serves as a link between the core bit and the outer barrel and is a crucial component of a diamond drilling system. In addition to stabilizing the drill string's bottom, it reams the hole to the right size. The drilling crew should regularly inspect the reaming shell's outer diameter since a worn-out or smaller reaming shell will cause the drill bit and drill string to become stuck. RDS manufactures great-quality synthetic and natural diamonds that are placed in a matrix with great resistance and is used to create reaming shells. On the leading edges of the ring, friction-resistant tungsten carbide inlays offer extra security and a longer lifespan. Diamond reaming shell for Nx duble tube size core diameter of 54 mm and a Drilling hole diameter of 76 mm. FAQ Terms and Conditions of Ordering: Quality warranty: Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally, you need 2 days Transportation: By air, By express, or by sea, according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, it normally takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL, UPS, TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available in any time 6. Quality and Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp +91 7600898210 C. A free replacement will be provided once the failure is confirmed to be caused by our product quality or if you are not satisfied with a refund. For more information, please contact: RDS Drilling Rig WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com

The reaming shell serves as a link between the core bit and the outer barrel and is a crucial component of a diamond drilling system. In addition to stabilizing the drill string's bottom, it reams the hole to the right size. RDS Engineering manufactures diamond core Reaming shells for Diamond Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. The reaming shell, which is immediately above the diamond core bit, keeps the drill hole's outer diameter constant. The diamond core bit is joined to the core barrel by the diamond reaming shell. The reaming shell effectively reams the hole because its outer diameter is only a little bit larger than the core bits. The drilling crew should regularly inspect the reaming shell's outer diameter since a worn-out or smaller reaming shell will cause the drill bit and drill string to become stuck. RDS manufactures great-quality synthetic and natural diamonds that are placed in a matrix with great resistance and is used to create reaming shells. On the leading edges of the ring, friction-resistant tungsten carbide inlays offer extra security and a longer lifespan. Diamond reaming shell for Nx Single tube size core diameter of 54 mm and a Drilling hole diameter of 76 mm. FAQ Terms and Conditions of Ordering: Quality warranty: Our products are made of high-quality steel, and all spare parts are inspected strictly before shipping. We have quickly responded to your complaint and suggestion. Production time: Generally, you need 2 days Transportation: By air, By express, or by sea, according to your requests. 1. Methods of Payment: RTGST, NEFT, IMPS, CASH, Online 2. Handling time for an order Based on order quantity, it normally takes 2 days for production. in 3 working days after receiving the advance payment 3. Shipping way Sample order: we suggest Courier express like DHL, UPS, TNT/FEDEX or by air Bulk order: we suggest by air or by sea. 4. Quality Control We have our own experienced QC. There will be strict inspection and testing for every order before shipping out. 5. After Services: a. Our sales team will respond to your question within 24 hours (Holidays Excluded) b. Technical Support will be available in any time 6. Quality and Service: A. There will be strict inspection and testing for every order before shipping out. B. Our sales team and Technical Support will respond to your question within 24 hours through WhatsApp +91 7600898210 C. A free replacement will be provided once the failure is confirmed to be caused by our product quality or if you are not satisfied with a refund. For more information, please contact: RDS Drilling Rig WhatsApp: +91 7600898210 Email: rdsdrillingrig@gmail.com