Specifications
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Standard Rotary Drill Pipes ＋
Standard Rotary Drill Pipes
| DIAMETER | WALL THICKNESS | RECOMMENDED THREAD | TUBE STEEL GRADES |
|---|---|---|---|
| 5″ | 500-.750″ | 3 ½” BECO | A106B/4140 HT&Q |
| 5 ½” | 500-.750″ | 3 ½” BECO | A106B/4140 HT&Q |
| 6″ | 750″ | 4″ BECO | A106B/4140 HT&Q |
| 6 ¼” | 750-1.000″ | 4″ BECO | A106B/4140 HT&Q |
| 6 ½” | 750-1.000″ | 4 ½” BECO | A106B/4140 HT&Q |
| 6 5/8″ | 862″ | 4 ½” BECO | A106B/4140 HT&Q |
| 7″ | 750-1.000″ | 4 ½” BECO, 5 ¼” BECO | A106B/4140 HT&Q |
| 7 5/8″ | 750-1.000″ | 5 ¼” BECO | A106B/4140 HT&Q |
| 8 5/8″ | 750-1.000″ | 6″ BECO | A106B/4140 HT&Q |
| 9 ¼” | 1.000-1.500″ | 6″ BECO | A106B/4140 HT&Q |
| 9 5/8″ | 1.000″ | 7″ BECO | A106B/4140 HT&Q |
*Additional diameters, wall thicknesses and thread types are available upon request.
Deck Bushing Specifications
| DRILL PIPE OD (IN) | DRILL PIPE OD (MM) | DECK BUSHING OD (IN) | DECK BUSHING OD (MM) | FLANGE DIAMETER IN/ TYPE | FLANGE DIAMETER MM/ TYPE |
|---|---|---|---|---|---|
| DRILL PIPE OD (IN) | DRILL PIPE OD (MM) | DECK BUSHING OD (IN) | DECK BUSHING OD (MM) | FLANGE DIAMETER IN/ TYPE | FLANGE DIAMETER MM/ TYPE |
| 4.000 | 102 | 10 | 254 | 12” w/ 2 x Slots | 305mm w/ 2 x Slots |
| 4.500 | 114 | 10 | 254 | 12” w/ 2 x Slots | 305mm w/ 2 x Slots |
| 4.500 | 114 | 10 | 254 | 14” w/ 1 x Flat | 356mm w/ 1 x Flat |
| 5.000 | 127 | 10 | 254 | 12” w/ 2 x Slots | 305mm w/ 2 x Slots |
| 5.000 | 127 | 10 | 254 | 14” w/ 1 x Flat | 356mm w/ 1 x Flat |
| 5.500 | 140 | 10-13 | 254-330 | 12-16” w/ 2 x Slots | 305-406mm w/ 2 x Slots |
| 6.000 | 152 | 10 | 254 | 14” w/ 1 x Flat | 356mm w/ 1 x Flat |
| 6.250 | 159 | 10-13 | 254-330 | 12-16” w/ 2 x Slots | 305-406mm w/ 2 x Slots |
| 6.500 | 165 | 10-13 | 254-330 | 12-16” w/ 2 x Slots | 305-406mm w/ 2 x Slots |
| 7.000 | 178 | 11.25-13 | 286-330 | 12-16” w/ 1 or 2 x Slots/ 1 x Flat | 305-406mm w/ 1 or 2 x Slots or 1 x Flat |
| 7.625 | 194 | 11.25-13 | 286-330 | 12-16” w/ 1 or 2 x Slots/ 1 x Flat | 305-406mm w/ 1 or 2 x Slots or 1 x Flat |
| 8.625 | 219 | 11.25-16 | 286-406 | 12-19” w/ 1 or 2 x Slots/ 1 x Flat | 305-482mm w/ 1 or 2 x Slots or 1 x Flat |
| 9.250 | 235 | 13-16 | 330-406 | 16-19” w/ Slots or Flat | 406-482mm w/ Slots or Flat |
| 10.750 | 273 | 15-16 | 381-406 | 15.750-17” w/ Flat only | 400-432mm w/ Flat only |
Pin-Box Casing
| CASING OD (MM) | CASING ID (MM) | PIN JOINT ID (MM) | LENGTH (MM, S/S) | CONNECTION TYPE |
|---|---|---|---|---|
| CASING OD (MM) | CASING ID (MM) | PIN JOINT ID (MM) | LENGTH (MM, S/S) | CONNECTION TYPE |
| 133 | 115 | 106 | 1500 | Pin-Box Left Hand |
| 133 | 115 | 106 | 2000 | Pin-Box Left Hand |
| 146 | 128 | 122.5 | 1500 | Pin-Box Left Hand |
Reverse Circulation Drill Pipe ＋
REVERSE CIRCULATION THREAD CSR1
| REVERSE CIRCULATION THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION DRILL PIPE CSR1 6M | 4” | 20’ | RCD40060C1A-01 |
| REVERSE CIRCULATION DRILL PIPE CSR1 3M | 4” | 10’ | RCD40030C1A-01 |
| REVERSE CIRCULATION DRILL PIPE CSR1 6M | 4 1/2” | 20’ | RCD41260C1A-01 |
| REVERSE CIRCULATION DRILL PIPE CSR1 3M | 4 1/2” | 10’ | RCD41230C1A-01 |
REVERSE CIRCULATION THREAD MATRIX
| REVERSE CIRCULATION THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION DRILL PIPE MATRIX 6M | 4” | 20’ | RCD40060MAA-01 |
| REVERSE CIRCULATION DRILL PIPE MATRIX 3M | 4” | 10’ | RCD40030MAA-01 |
| REVERSE CIRCULATION DRILL PIPE MATRIX 6M | 4 1/2” | 20’ | RCD41260MAA-01 |
| REVERSE CIRCULATION DRILL PIPE MATRIX 3M | 4 1/2” | 10’ | RCD41230MAA-01 |
REVERSE CIRCULATION THREAD METZKE
| REVERSE CIRCULATION THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION DRILL PIPE METZKE 6M | 4” | 20’ | RCD40060MEA-01 |
| REVERSE CIRCULATION DRILL PIPE METZKE 3M | 4” | 10’ | RCD40030MEA-01 |
| REVERSE CIRCULATION DRILL PIPE METZKE 6M | 4 1/2” | 20’ | RCD41260MEA-01 |
| REVERSE CIRCULATION DRILL PIPE METZKE 3M | 4 1/2” | 10’ | RCD41230MEA-01 |
REVERSE CIRCULATION THREAD REMET
| REVERSE CIRCULATION THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION DRILL PIPE REMET 6M | 4” | 20’ | RCD40060REA-01 |
| REVERSE CIRCULATION DRILL PIPE REMET 3M | 4” | 10’ | RCD40030REA-01 |
| REVERSE CIRCULATION DRILL PIPE REMET 6M | 4 1/2” | 20’ | RCD41260REA-01 |
| REVERSE CIRCULATION DRILL PIPE REMET 3M | 4 1/2” | 10’ | RCD41230REA-01 |
Reverse Circulation Inner Tubes ＋
REVERSE CIRCULATION INNER TUBE THREAD CSR1
| REVERSE CIRCULATION INNER TUBE THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION INNER TUBE CSR1 6M | 4” | 20’ | RCD40060C1A-T1 |
| REVERSE CIRCULATION INNER TUBE CSR1 3M | 4” | 10’ | RCD40030C1A-T1 |
| REVERSE CIRCULATION INNER TUBE CSR1 6M | 4 1/2” | 20’ | RCD41260C1A-T1 |
| REVERSE CIRCULATION INNER TUBE CSR1 3M | 4 1/2” | 10’ | RCD41230C1A-T1 |
REVERSE CIRCULATION INNER TUBE THREAD MATRIX
| REVERSE CIRCULATION INNER TUBE THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION INNER TUBE MATRIX 6M | 4” | 20’ | RCD40060MAA-T1 |
| REVERSE CIRCULATION INNER TUBE MATRIX 3M | 4” | 10’ | RCD40030MAA-T1 |
| REVERSE CIRCULATION INNER TUBE MATRIX 6M | 4 1/2” | 20’ | RCD41260MAA-T1 |
| REVERSE CIRCULATION INNER TUBE MATRIX 3M | 4 1/2” | 10’ | RCD41230MAA-T1 |
REVERSE CIRCULATION INNER TUBE THREAD METZKE
| REVERSE CIRCULATION INNER TUBE THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION INNER TUBE METZKE 6M | 4” | 20’ | RCD40060MEA-T1 |
| REVERSE CIRCULATION INNER TUBE METZKE 3M | 4” | 10’ | RCD40030MEA-T1 |
| REVERSE CIRCULATION INNER TUBE METZKE 6M | 4 1/2” | 20’ | RCD41260MEA-T1 |
| REVERSE CIRCULATION INNER TUBE METZKE 3M | 4 1/2” | 10’ | RCD41230MEA-T1 |
REVERSE CIRCULATION INNER TUBE THREAD REMET
| REVERSE CIRCULATION INNER TUBE THREAD | DIAMETER | LENGTH | PART NUMBER |
|---|---|---|---|
| REVERSE CIRCULATION INNER TUBE REMET 6M | 4” | 20’ | RCD40060REA-T1 |
| REVERSE CIRCULATION INNER TUBE REMET 3M | 4” | 10’ | RCD40030REA-T1 |
| REVERSE CIRCULATION INNER TUBE REMET 6M | 4 1/2” | 20’ | RCD41260REA-T1 |
| REVERSE CIRCULATION INNER TUBE REMET 3M | 4 1/2” | 10’ | RCD41230REA-T1 |
Raise Boring Series ＋
| SPECS | THREAD | MATERIAL | LENGTH (mm) |
|---|---|---|---|
| SPECS | THREAD | MATERIAL | LENGTH (mm) |
| 176 | 6 5/8 REG | 4145H/4330V | 1000 |
| 182 | 6 5/8 REG | 4145H/4330V | 1000 |
| 203 | 6 3/4 DI22 | 4145H/4330V | 1000-1500 |
| 254 | 8 1/4 DI22 | 4145H/4330V | 1000-1500 |
| 286 | 9 1/4 DI22 | 4145H/4330V | 1000-1500 |
MINING & CONSTRUCTION DRILLING TOOLS
Drill Pipe & Drilling Tools Built for Demanding Ground Conditions
North Star provides mining drill rods, rotary drill pipe, DTH drill rods & drill pipes, adaptor subs, stabilizers, deck bushings and casing for demanding drilling applications. Our drilling tools are configured around rig requirements, formation conditions and connection specifications — from rotary drilling and down-the-hole drilling to casing support.
Core terms: mining drill rods · mining drill pipe · rotary drill rods · rotary drill pipe · DTH drill rods · DTH drill pipes · drilling tools · drill pipe manufacturer · drill pipe supplier · drill pipe manufacturer China
HOW TO CHOOSE
Match the Drill Pipe to the Drilling Method
The right drill rod or drill pipe depends on the drilling method, formation, rig and connection. Use these checkpoints as a practical starting point.
01
Rotary Drilling
For rotary drill rods and drill pipe, consider formation abrasiveness, mid-body wear, tube steel grade, diameter, wall thickness, thread configuration and required service life.
02
Down-the-Hole (DTH) Drilling
For DTH drill rods & drill pipes, confirm the DTH rig, rod dimensions, connection type and supporting DTH adaptors, stabilizers and deck bushings.
03
Casing & Support
For casing applications, define borehole requirements, casing dimensions and the supporting drilling system before final configuration.
SPECIFICATIONS & CUSTOMIZATION
Configured Around Your Rig
North Star can configure drilling products around your drilling equipment and project requirements. For quotations, provide the information that defines the connection and operating conditions.
01
Rig Make & Model
Identify the drilling rig and model so the drill rod, drill pipe or adaptor configuration can be matched correctly.
02
Dimensions
Provide drill rod OD, length and wall thickness. For adaptors, include outside diameter and shoulder-to-shoulder length.
03
Thread Connection
Specify pin and box thread size and type, including API Reg, API IF or BECO where applicable.
04
Wrenching & Hard Facing
Confirm wrenching dimensions and location, hard-facing requirements and any special requests.
05
Formation & Wear
Match tube or tool configuration to normal, hard or abrasive drilling conditions and the expected wear environment.
06
Custom Manufacturing
CNC machining and certified thread gages support accurate, application-specific configurations.
WHY NORTH STAR
A Drilling Tools Manufacturer Built Around the Application
North Star combines engineering, manufacturing and technical support to help customers match the right product to the right project and the right connection.
01
500+
Employees
Current company scale supported by the brand manual.
02
100,000 m²
Facility
Large-scale manufacturing base.
03
300,000+
Annual capacity
Brand figure for production capacity.
04
1998
Established
More than two decades of drilling tool manufacturing experience.
FAQ · MINING & CONSTRUCTION DRILLING
Common Questions About Mining Drill Rods & Drill Pipe
This section captures the product, specification and purchasing questions commonly used in search when evaluating mining and construction drilling tools.
What are mining drill rods used for?
Mining drill rods transmit rotation, torque and thrust between the drilling rig and the drilling tool. North Star supplies rotary drill rods, DTH drill rods and other drilling components for mining and construction applications.
What is the difference between a drill rod and drill pipe?
The terms can vary by drilling method and industry. For category searches, customers may use mining drill rods, mining drill pipe or drilling pipe. North Star provides both rotary drill rods / drill pipe and DTH drill rods & drill pipes.
How do I choose rotary drill rods?
Start with the rig make and model, rod OD, length, wall thickness, thread configuration and formation conditions. For hard and abrasive formations, alloy tube options can be considered where mid-body wear is a major concern.
What are DTH drill rods and drill pipes?
DTH drill rods and drill pipes are used in down-the-hole drilling systems. Selection should be based on the DTH rig, rod dimensions, connection configuration and the supporting DTH drilling tools.
What information is needed for a drill pipe quotation?
Provide the drill rig make and model, drill rod OD, length, wall thickness, pin and box thread size/type, wrenching configuration and any special requirements.
Where can I buy mining drill rods or drill pipe?
North Star supplies mining drill rods, rotary drill pipe, DTH drill rods & drill pipes and supporting drilling tools. Contact the team with your rig and application details for a configuration recommendation.
MINING & CONSTRUCTION DRILLING TOOLS
Need the Right Drill Pipe Configuration?
Tell us your rig make and model, drill rod or drill pipe dimensions, thread connection, formation and special requirements. Our team can help match the right drilling tools to your application.