China button bits, mining button bits, threaded button drill bits

Mining Button Bits: High quality and several thread with various carbide tips are available. All products can be developed upon customers' requests. We can supply all kind of button bits with Rope thread R22, R25, R28, R32, R35, R38 and T thread, T38, T45, T51, ST58, T60 etc. Main Button Bits: R32-43MM, R32-45MM, R32-51, R32-64, R32-76,T38-64, T38-76MM, T38-89, T38-102MM,T45-76MM, T45-89MM, T45-102MM,T51-89MM, T51-102MM, T51-127 etc. We can offer you all face design, flat