Taper button bits,Five button bit:
Shank size for 22*108mm drill rod
Taper degree: 7/11/12 degree
Bit diameter:32mm,34mm,36mm,38mm,40mm,42mm
Bit shape: chisel ,cross,button
Long shirt or Short shirt
We also accept OEM


Taper button bits,Five button bit:
Shank size for 22*108mm drill rod
Taper degree: 7/11/12 degree
Bit diameter:32mm,34mm,36mm,38mm,40mm,42mm
Bit shape: chisel ,cross,button
Long shirt or Short shirt
We also accept OEM