R38-Round 39-R38 Flushing Hole 14.5mm Wrench Flat 32mm R38 Extension Rod

R38-Round 39-R38 Flushing Hole 14.5mm Wrench Flat 32mm R38 Extension Rod

Description
Drill rod using R38 thread system. With wrench flats to aid in coupling/decoupling of rods for extension drilling.

• R28 thread system
• Suitable for small hole range

Color: Based on Customer requirements

Material: Tungsten carbide and high strength alloy steel

Processing: CNC milling and proprietary heat treatment process

Type: R38 Extension Rod R38-Round 39-R38 Flushing Hole 14.5 mm Wrench Flat 32 mm

Our Rod using thread system. Drilling precision can be further improved by using this as the first rod in a normal drill string. Furthermore, since this is a speed rod design it will produce straighter holes and at least 10% higher penetration rate in good rock conditions compared to rod and coupling sleeve combination system.

It is well known that the performance of the material could be played well only after going through heat treatment to release its maximum potential, therefore, the choice of material and heat treatment process are important on an equal basis.

(1) Threaded Connection: R22, R25, R32, R38, T38, T45, T51, and so on.
(3) Length: 600-6400mm.

 
Specification