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Description
Q9-45mm-R28 Thread button bits
Superdrill Threaded button bits
With the top quality of alloy steels imported from USA and the best carbides made in China, we produce all threaded button bits by hot press technology.
A comprehensive range of various button bits shown as below:
Thread sizes: R25, R28, R32, R35, R38, T38, T45, T51, ST58, ST60, GT60;Head diameters: 33mm ~ 152mm;
Face designs; flat face, drop center, uni-face;
Skirt designs: normal, retrac, straightrac;
Our R28 products ranges are as follows:
Drill bits:
Threaded button bit R28 thread, diameter: 37mm, 38mm, 41mm, 43mm, 45mm, 48mm.
Threaded cross type drill bits R28 thread, diameter: 38mm, 41mm, 43mm, 45mm, 51mm.
Drifter rod:
Drifter rod R28-Hex. 28-R25, 10 feet.
Drifter rod R32-Hex. 28-R28, 10 12 13 14 feet.
Drifter rod R32-Hex. 32-R28 10 feet.
Drifter rod R38- Hex. 32-R28 10 12 14 feet.
Coupling-Sleeves.html target='_blank'>Coupling sleeves:
Many various type coupling with thread R28.
Dome reaming tools:
Reaming equipment for cut holes.
Pilot adaptor diameter 40mm x 12 taper R28 ( R32) thread.
Shank adaptors:
Suitable R28 Shank adaptor for various type drifters.
Product picture：
