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Common specifications and models of threaded connection drill bits.



Common drill bit diameters for threaded connection drill bits are35mm,38mm,41mm,43mm,45mm,48mm,51mm,54mm,57mm,64mm,76mm,89mm,102mm,115mm,118mm,127mm,140mm,152mm.

Common thread types includeRThreaded drill bits  R22,R25,R28,R32,TR35,R35,R38Threaded connection drill bits are mainly used for small diameter drill bits, paired with low-power rock drilling equipment.TThreaded drill bits  T38,T45,T51,T60Threaded,TThreaded connection drill bits are generally used for medium to large diameter threaded connection drill bits.ST58,ST68,EL60,EL68Threads are used for large diameter threaded connection drill bits, paired with high-power rock drilling equipment.

 

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