China R28/SR28 Thread drill rods Factory, Pricelist

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China R28/SR28 Thread drill rods Factory, Pricelist

Drifting and tunnelling tools include rods, shank adapters, couplings and bits.

R28 Drill rods include HEX28 drill rod and HEX32 drill rod.

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Product Description

Product Detail

Drifting and tunnelling tools include rods, shank adapters, couplings and bits. These professional tools are engineered for high-performance drilling in demanding underground environments.

Thread Types: SR22, SR25, R25, SR28, R28, SR32, R32, SR38, R38 and T35.

Diameter Range: 38mm - 127mm.

Material Quality: Made with high-quality alloy steel bar and tungsten carbides.

Our thread button bits are manufactured through heat treatment so that they can withstand the toughest rock drilling demands and transmit intensive impact energy into the rock with the least possible loss of energy. Specialized products like BIT R28 37mm, 28 38mm, R32 45mm, R32 48mm, and BIT R32 51mm are widely preferred for their durability and efficiency.

R28/SR28 Extension Rod & Drifter Rod Specs

HEX EXTENSION ROD R28/SR28

PRODUCT IMAGE	ROD CROSS SECTION	LENGTH (L)		THREAD
PRODUCT IMAGE	ROD CROSS SECTION	mm	FT	Left	Right
	HEX 28	610 / 915	2' / 3'	R28	R28/SR28
	HEX 28	1220 / 1525	4' / 5'	R28	R28/SR28
	HEX 28	1830 / 2435	6' / 8'	R28	R28/SR28
	HEX 28	3050 / 3660	10' / 12'	R28	R28/SR28

DRIFTER ROD SERIES

HEX Drifter rod R28 - R32 / R38 / T38 (HEX 28 & HEX 32)
Type	HEX Section	mm	FT	Left Thread	Right Thread
R32 Series	HEX 28	2475 - 4305	8' 1-1/2" - 14' 1-1/2"	R32	R28/SR28
R38 Series	HEX 28 / 32	2475 - 5525	8' 1-1/2" - 18' 1-1/2"	R38	R28/SR28
T38 Series	HEX 28 / 32	2475 - 5525	8' 1-1/2" - 18' 1-1/2"	T38	R28/SR28

Frequently Asked Questions

What components are included in drifting and tunneling tools?

The tools primarily consist of drill rods, shank adapters, couplings, and various types of drill bits.

What materials are used for the button bits?

They are manufactured using high-quality alloy steel bars and tungsten carbides, combined with professional heat treatment for maximum durability.

Which thread types do you offer for these tools?

We offer 11 main thread types, including SR22, SR25, R25, SR28, R28, SR32, R32, SR38, R38, and T35.

What is the diameter range for the drilling products?

The diameter typically ranges from 38mm up to 127mm, suitable for various rock drilling demands.

Are these tools suitable for tough rock conditions?

Yes, the tools are specifically designed with heat treatment to withstand the toughest rock drilling demands while transmitting intensive impact energy efficiently.

What are the common lengths for HEX extension rods?

Lengths vary based on application, common sizes include 610mm (2'), 1220mm (4'), up to 4305mm (14') and beyond depending on the thread type.