Material: Alloy steel bar 45CrNiMoV and tungsten carbide tips YK05
Body type: Normal body or retrac body
Thread type: R22,R25,R28,R32,R38,T38,T45,T51,ST58,ST68,GT60
Diameter: 32mm-127mm
Button bit shape: spherical and ballistic
Face shape: Flat shape and drop-center shape