Professional Manufacturer of High-Performance Rock Drilling Tools

Threaded Drill Rod

Threaded drill rod is an important part of the rock drilling tool system. It is mainly used to connect the drill tail and the drill bit to transmit the impact force, rotation force and propulsion force generated by the rock drill.

It is made of high-strength alloy steel. The manufacturing process includes forging, heat treatment, precision machining and surface treatment (such as carburizing, quenching, etc.) to ensure its high strength and wear resistance. It is a key component in drilling and rock crushing operations.

Description

Common Dimension

Thread Type Drill rod Length Diameter Weight Approx
mm Foot mm inch kg
R25 Drifter Rod, R32-Hex25-R25Drifter Rod, R32-Hex25-R25 2100 7 25 1 8.6
2400 8′ 25 1 9.6
2600 8’8″ 25 1 10.4
2800 9′ 25 1 11.1
3090 10′ 25 1 12.2
3700 12′ 25 1 14.6
Extension Rod, R25-Hex25-R25Extension Rod, R25-Hex25-R25 915 3′ 25 1 3.4
1000 3’3/8″ 25 1 4
1220 4′ 25 1 4.6
1525 5′ 25 1 5.8
1830 6′ 25 1 7
2435 8′ 25 1 9.3
3050 10′ 25 1 12
Speedrod, R25-Hex25-R25Speedrod, R25-Hex25-R25 610 2′ 25 1 2.7
1220 4′ 25 1 5.1
R28 Drifter Rod, R32-Hex28-R28Drifter Rod, R32-Hex28-R28 2400 7’10” 28 1 1/8 12.2
2750 9′ 28 1 1/8 14.4
3700 12’1/2″ 28 1 1/8 18.9
4000 13’3/8″ 28 1 1/8 20.4
4310 14’1/2″ 28 1 1/8 22
4920 16’1/2″ 28 1 1/8 25.3
Drifter Rod, R38-Hex32-R28Drifter-Rod-R38-Hex32-R28 2900 9’1/8″ 32 1 1/4 18.8
3090 10’1/2″ 32 1 1/4 20
3700 12’1/2″ 32 1 1/4 24
4310 14’1/2″ 32 1 1/4 27.9
Drifter Rod, R32-Hex32-R28Drifter Rod, R32-Hex32-R28 3090 10’1/2″ 32 1 1/4 20
3700 12’1/2″ 32 1 1/4 20
Drifter Rod, R32-Hex32-R28 With slimmed shank end for female shankDrifter Rod, R32-Hex32-R28 With slimmed shank end for female shank 3090 10’1/2″ 32 1 1/4 20
3700 12’1/2″ 32 1 1/4 24
4000 13’3/8″ 32 1 1/4 25.9
4310 14’1/2″ 32 1 1/4 27.9
Extension Rod, R28-Hex28-R28Extension Rod, R28-Hex28-R28 3050 10′ 28 1 1/8 15
Speedrod, R28-Hex28-R28Speedrod, R28-Hex28-R28 3050 10′ 28 1 1/8 15
R32 Drifter Rod, R/T38-Hex32-R32Drifter Rod, R T38-Hex32-R32 2400 7’10” 32 1 1/4 15.3
3090 10’1/2″ 32 1 1/4 19.8
3400 11’3/4″ 32 1 1/4 21.7
4000 13’3/8″ 32 1 1/4 25.5
4310 14’1/2″ 32 1 1/4 27.5
4920 16’1/2″ 32 1 1/4 31.3
5530 18’1/2″ 32 1 1/4 35.2
Drifter Rod, R/T38-Hex35-R32Drifter Rod, R T38-Hex35-R32 3090 10’1/2″ 35 1 3/8 24
3700 12’1/2″ 35 1 3/8 28.7
4000 13’3/8″ 35 1 3/8 31.1
4310 14’1/2″ 35 1 3/8 33.4
4920 16’1/2″ 35 1 3/8 37.8
5530 18’1/2′ 35 1 3/8 42.9
6100 20″ 35 1 3/8 47.3
Speedrod, T38-Hex35-R32Speedrod, T38-Hex35-R32 3700 12’1/2″ 35 1 3/8 29
4310 14’1/2″ 35 1 3/8 34.1
4920 16’1/2″ 35 1 3/8 38.8
5530 18’1/2′ 35 1 3/8 43.6
6400 21′ 35 1 3/8 50.3
T38 Extension Rod, T38-Round39-T38Extension Rod, T38-Round39-T38 1220 4′ 39 1 1/2 10.2
1525 5′ 39 1 1/2 12.8
1830 6′ 39 1 1/2 15.3
2435 8′ 39 1 1/2 20.4
3050 10′ 39 1 1/2 25.5
3660 12′ 39 1 1/2 30.9
3965 13′ 39 1 1/2 33.2
4270 14′ 39 1 1/2 35.7
4880 16′ 39 1 1/2 41
5530 18’1/2″ 39 1 1/2 46.3
6095 20′ 39 1 1/2 50.9
MF-rod, T38-Round39-T38MF-rod, T38-Round39-T38 915 3′ 39 1 1/2 10.7
1220 4′ 39 1 1/2 13.3
1525 5′ 39 1 1/2 15.8
1830 6′ 39 1 1/2 18.3
3050 10′ 39 1 1/2 28.5
3660 12′ 39 1 1/2 33.6
4270 14′ 39 1 1/2 38.7
4880 16′ 39 1 1/2 43.7
5530 18’1/2″ 39 1 1/2 49.2
6095 20 39 1 1/2 53.9
Double thread rod T38-Round39-T38Double thread rod T38-Round39-T38 3050 10′ 46 1 3/4 25.7
3660 12′ 46 1 3/4 30.9
Hex. Extension rod T38-Hex32-T38Hex. Extension rod T38-Hex32-T38 1220 4′ 32 1 1/4 8.6
1830 6′ 32 1 1/4 12.6
2435 8′ 32 1 1/4 16.6
3050 10′ 32 1 1/4 20.8
3660 12′ 32 1 1/4 24.9
Guide speedrod T38-Round46-T38Guide speedrod T38-Round46-T38 1830 6′ 46 1 3/4 23.5
3050 10′ 46 1 3/4 37.2
3660 12′ 46 1 3/4 44
4270 14′ 46 1 3/4 50.9
4880 16′ 46 1 3/4 57.7
5530 18’1/2″ 46 1 3/4 65
6095 20′ 46 1 3/4 71.3
T45 Extension Rod  T45-Round46-T45Extension Rod T45-Round46-T45 1830 6′ 46 1 3/4 21.6
2435 8′ 46 1 3/4 28.3
3050 10′ 46 1 3/4 35.2
3660 12′ 46 1 3/4 42.1
4270 14′ 46 1 3/4 48.9
5530 18′ 46 1 3/4 63
6095 20′ 46 1 3/4 69.3
MF-rod  T45-Round46-T45MF-rod T45-Round46-T45 1525 5′ 46 1 3/4 21.2
1830 6′ 46 1 3/4 24.6
3050 10′ 46 1 3/4 38.2
3660 12′ 46 1 3/4 45
4270 14′ 46 1 3/4 51.9
5530 18′ 46 1 3/4 66
6095 20′ 46 1 3/4 72.3
Guide speedrod  T45-Round52-T45Guide speedrod T45-Round52-T45 3050 10′ 52 2 46.6
3660 12′ 52 2 55.8
4270 14′ 52 2 63.8
5530 18′ 52 2 81.5
6095 20′ 52 2 89.4
T51 Extension rod  T51-Round52-T51Extension rod T51-Round52-T51 3050 10′ 52 2 45.3
3660 12′ 52 2 54.1
4270 14′ 52 2 63
4880 16′ 52 2 71.8
5530 18′ 52 2 81.2
6095 20′ 52 2 89.4
MF-rod  T51-Round52-T51MF-rod T51-Round52-T51 1525 5′ 52 2 26.2
1830 6′ 52 2 30.6
3050 10′ 52 2 48.3
3660 12′ 52 2 57.1
4270 14′ 52 2 66
4880 16′ 52 2 74.8
5530 18′ 52 2 84.2
6095 20′ 52 2 92.4

Key Parameters to Confirm for Accurate Selection

Our threaded drill rods are manufactured in full compliance with ISO and international industry standards, with 100% interchangeability with original parts of international mainstream brands. You can quickly select the matching product type through the following classification guide, and we also support full customization of non-standard specifications according to your working conditions and equipment parameters.

To help you get the most suitable products and accurate quotation, please confirm the following core information when consulting:

  1. Drill rod type (Drifter Rod/Extension Rod/MF Rod/Guide Tube)
  2. Thread specification of both ends (e.g., R32 male thread, T38-T45 variable thread)
  3. Rod body diameter, cross-section shape (hexagonal/round) and total length
  4. Matched drill rig/rock drill model and working condition details
  5. Material grade requirements and procurement quantity
application of Threaded drill rod

Competitive Advantage

Premium Steel, Longer Service Life

Made from high-quality 23CrNi3Mo alloy steel with professional heat treatment, our drill rods offer excellent toughness, fatigue resistance, and longer working life in demanding drilling conditions.

Easy to maintain icon

Precision Machining, Stable Performance

Processed by high-precision CNC machines, the threads ensure accurate fit, strong interchangeability, and efficient impact energy transmission for smoother and more reliable drilling.

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Optimized Structure, Better Durability

The rod body is designed for high bending and torsion resistance. Smooth inner flushing channels help remove debris efficiently and maintain stable drilling in harsh rock formations.

Quality Control

Strict Quality Control, Consistent Quality

Each drill rod goes through forging, machining, heat treatment, inspection, and testing before delivery, ensuring reliable performance, stable batch quality, and dependable field use.

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Full Range Supply, One-Stop Sourcing

We offer a complete range of threaded drill rods and matching accessories, helping customers simplify purchasing, improve compatibility, and reduce procurement management costs.

Maritime transportation and air transportation

Flexible Customization, Fast Delivery

Custom lengths, thread types, and special designs are available to match different drilling needs. Standard models are kept in stock to support fast delivery and OEM requirements.

Applications of Threaded Dill Rod

Underground Mining

Mining

Used for blasthole, pre-split, and tunneling drilling in mining operations.

Transportation Tunnel Construction

Tunneling

Supports drifting, anchoring, and grouting in tunnel and underground projects.

Construction drill bit

Anchoring

Ideal for slope stabilization, anchor holes, and geotechnical reinforcement drilling.

Quarry Aggregate Mining

Quarrying

Reliable for quarry blasting, rock breaking, and aggregate production drilling.

Slope Stabilization​​

Hydropower

Suitable for reinforcement, anchoring, excavation, and grouting in hydropower works.

Geological Core Drilling

Exploration

Applied in prospecting, investigation, pipe gallery, and special engineering drilling.

Questions Before Sourcing? Let’s Talk

Whether you’re sourcing for production, engineering projects, or custom tooling solutions, we provide expert guidance, accurate specifications, and competitive pricing.

Our technical team will review your requirements — including material, size, drilling conditions, and application details — to make sure you get the right product for your needs.

Fill out the form and our technical team will contact you shortly.

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