Drifting and tunnelling tools include rods, shank adapters, couplings and bits.
We have mainly 11 threads: SR22,SR25,R25, SR28,R28,SR32,R32,SR38,R38 and T35. Diameter: 38-127mm,They can be used with button bits, cross bits and reaming products.
Drifting and tunneling-R22,Drifting and tunneling-R25,Drifting and tunneling-R28,Drifting and tunneling-R32, Drifting and tunneling-R35 Thread button bits made with high quality of best quality alloy steel bar and tungsten carbides, through heat treatment so that it can withstand the toughest rock drilling demands and transmit intensive impact energy into the rock with the least possible loss of energy Especially our BIT R28 37mm,28 38mm,R32 45mm,R32 48 mm,BIT R32 51mm, Button Bit ,Retrac Bit, which is widely welcomed by our client with good quality and good price . Especially our H35，TUN ROD T38-Hex35-R32，Drill rod R32 H28 R28，MF rod, which is widely welcomed by our client with good quality and good price .
R22/SR22 Extension rod
HEX EXTENSION ROD R22 - R22 - HEX 22 7/8″ ROPE THREAD (22mm) X 7/8″ HEX (22mm) | |||||
| ROD CROSS SECTION | LENGTH (L) | THREAD | ||
mm | FT | Lifit | Right | ||
HEX 22 | 610 | 2′ | R22/SR22 | R22/SR22 | |
HEX 22 | 915 | 3′ | R22/SR22 | R22/SR22 | |
HEX 22 | 1220 | 4′ | R22/SR22 | R22/SR22 | |
HEX 22 | 1525 | 5′ | R22/SR22 | R22/SR22 | |
HEX 22 | 1830 | 6′ | R22/SR22 | R22/SR22 | |
R22/SR22 Shank rod
Shank rod R22/SR22 7/8″ ROPE THREAD (22mm) X 7/8″ HEX (22mm), 4-1/4″ SHANK (108mm) | |||||
| ROD CROSS SECTION | LENGTH (L) | THREAD | ||
mm | FT | Lifit | Right | ||
HEX 22 | 255 | 10″ | SHANK (108mm) | R22/SR22 | |
HEX 22 | 1000 | 3′ 3″ | SHANK (108mm) | R22/SR22 | |
HEX 22 | 1800 | 5′ 11″ | SHANK (108mm) | R22 | |
