The core lifter, also known as the core catcher, is responsible for keeping the core inside the barrel and retaining it during wedge action. Core lifters from RDS Engineering are made of spring steel that has been suitably treated to add more spring action for a longer lifespan. To break the core sample, a core lifter case is required. The core lifter's tapered inside prevents it from sliding and allows it to grip onto the core sample. The core is kept inside the barrel using a core lifter or core catcher. Our core lifters are constructed from premium steel that has been precisely hardened for improved performance and longer life. Three essential components make up the core lifter assembly, which enables you to securely grasp the core sample and break it to bring it to the surface. Using the same source for all three pieces will assure optimal performance and provide the right distance between the core lifter, core lifter casing, and stop ring. 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 core is kept inside the barrel using a core lifter or core catcher. Our core lifters are constructed from premium steel that has been precisely hardened for improved performance and longer life. To break the core sample, a core lifter case is required. The core lifter's tapered inside prevents it from sliding and allows it to grip onto the core sample. The core lifter, also known as the core catcher, is responsible for keeping the core inside the barrel and retaining it during wedge action. Core lifters from RDS Engineering are made of spring steel that has been suitably treated to add more spring action for a longer lifespan. Three essential components make up the core lifter assembly, which enables you to securely grasp the core sample and break it to bring it to the surface. Using the same source for all three pieces will assure optimal performance and provide the right distance between the core lifter, core lifter casing, and stop ring. 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 Manufacturing Impregnated diamond core bits for Diamond Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. 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. 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. 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. Nx Diamond Core bit size core diameter of 54 mm and a Drilling hole diameter of 76 mm. 55 carat Diamond Core bit 70 carat Diamond 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

Use: For approximately 100% core recovery, the Triple Tube Core Barrel is utilized for mineral research, geotechnical study, diamond core drilling, soil analysis, testing of high-rise construction foundations, and exploration of dams and bridges. Method: The reaming shell, diamond core bit, and core lifter casing are taken out once the triple tube barrel has been taken out of the drill hole. The third, or split tube, is forced out using a piston mechanism after air or water is poured into the head. The top half of the split tube is then raised, showing the core in its original state. RDS Engineering manufactures the following Triple Tube Core barrels: • BMLC Triple Tube Core Barrel • NMLC Triple Tube Core Barrel • HMLC Triple Tube Core Barrel Specification and standard size: NMLC Triple Tube Core Barrel 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 a full line of double tube core barrels in accordance with ISO Standards and DCDMA. Use: Double tube core barrels are used for a variety of purposes, including diamond core drilling, tunnel drilling, geotechnical analysis, soil testing, drainage, and grouting holes. Method: The inner tube is connected to the core barrel head by bearings in double tube core barrels, which allows the inner tube to rotate independently of the core barrel. The outer tube and inner tube of the double tube core barrel are filled with water. The inner tube bottom end has perforations that allow water to pass through. The only part of the core that is prone to corrosion is up to the diamond core bit. In relation to the overall length of the two tube core barrel, this distance is quite short. It is conceivable to accept a core made of softer and fractured materials once the erosion issue has been resolved. It delivers an improved rate of core recovery and little core erosion. Specification and standard size: AX double tube core barrel core diameter of 30.1 mm and a Drilling hole diameter of 48 mm. BX double tube core barrel core diameter of 42 mm and a Drilling hole diameter of 60 mm. NX double tube core barrel core diameter of 54 mm and a Drilling hole diameter of 76 mm. HX double tube core barrel core diameter of 76 mm and a Drilling hole diameter of 100 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 Manufacturing Single Tube Core barrels for Diamond Core Drilling, Tunnel Drilling, Geotechnical Investigation, Soil Testing, Drainage, and Grouting of Holes, among other uses. The core is continually in contact with water, which erodes the core. Single tube core barrels are used for core drilling in continuous hard rock formations where core recovery is not as important since they have the lowest core recovery. The following core barrels are produced by RDS Engineering in 3 meters, 1.5 meters, and lesser lengths like 1.0 meters, 0.75 meters, or beginning core barrels. Specification and standard size AX single tube core barrel core diameter of 30.1 mm and a Drilling hole diameter of 48 mm. BX single tube core barrel core diameter of 42 mm and a Drilling hole diameter of 60 mm. NX single tube core barrel core diameter of 54 mm and a Drilling hole diameter of 76 mm. HX single tube core barrel core diameter of 76 mm and a Drilling hole diameter of 100 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

Model: RDS-90 Mini Portable Trolley Mounted Hydraulic Diamond Core Drilling Rig Application Use: Geotechnical, Mining Core Drilling Capacity: Maximum Depth: 90 Meters (Soil and Rock) Hole Diameter: 50mm to 300mm Drilling On: Any Type of Soil, All Types of Hard rocks Like iron, granite, quartzite, bolder, etc. Power By: New Tata 407 engine, 3-cylinder engine, Recondition with a 6-month warranty (Optional) Transmission: 5 forward gears 1 reverse gear (5F+1R) Vertical gearbox Rotary Head (PTO): Rotation By Gearbox Thore or Rotation by Hydraulic 315 Motor (Optional), variable speed: 50 to 600 RPM Max Torque: 300 Nm Water swivel: Stainless Steel Hard Chrome Shaft or Bush 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 four 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: 2000 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: Axe, 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-90 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