R32 Thread Rock Button Bits - King Rock Drilling Tool
2021-8-5u2002·u2002Thread button bits could be with Rope thread R22, R25, R28, R32, R35, R38 and T thread, T38, T45, T51, T60, ST58, ST68 etc. T60-92mm, T60-96mm, T60-102mm, T60-115mm, T60-118mm, T60-127mm, T60-140mm, T60-152mm etc. T38 threaded button bits could be produced as per your requirements completely, such as flat face or drop-center face; normal …
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