Product Name: Rock drilling T45 thread retrac ballistic drop center button bits.
Description: Button bits are made with best quality alloy steel bar and tungsten carbide buttons, through advanced heat treatment technology like Atlas Copco, Sandvik & Boart Longyear.
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