T38 button bits, China button bits manufacturers, T38 64mm button bits, T38 70mm button bits, T38 76mm button bits, T38 89mm button bits.
 
1) Diameter:  64mm, 70mm, 76mm, 89mm Button Bits.
2) Material: 45CrNiMoV,YK05 etc.
3) Advanced heat treatment technology.
4) Variety carbide tips suitable for different rock formations.
5) Thread connection: H25, R22, R25, R28, R32, R38, T38, T45, T51, ST58/ED68, GT60. 

1. Standard body & flat face
2. Standard body & drop center
3. Retrac body & flat face
4. Retrac body & drop center