Product Name: | Spherial button drill bits | Description: | Spherial button drill bits Button bits made with best quality 45CrNiMoVA alloy steel bar and YK05 tungsten carbide, through heat treatment like Atlas. | Material: | Alloy steel bar and tungsten carbide bit | MOQ: | No MOQ required for testing and trial order | Body Type: | Normal type and retract type | Taper type: | 4 degree,6degree,7degree,11degree,12degree | Thread type: | R22,R25,R28,R32,R38,T38,T45,T51,ST58,ST68,GT60 | Diameter: | 32mm-152mm | Buttonbit shape: | Spherical and Ballistic | Face shape: | Flat shape and Drop-center shape |
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