R25 R28 R32 T38 T45 T51 Rock Thread Drill Button Bit
Thread button bit/Thread drill bit: Description: Made from top quality steel and tungsten carbide as same as internationally well-known brand, through heat treatment like Atlas. Material: top quality steel and tungsten carbide: Body type: Normal or retrac or straightrac: Thread type: R25/R28/R32/R35/T38/T45/T51/ST58/ST68/GT60/T60. Diameter: 32-152mm: Button:
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