... drill,threaded,tapered,drilling tools,drill bit,drill bits,rock drilling tools 1. Button bits: Tapered button bits (28mm, 30mm 32mm, 34mm, 36mm, 40mm ... , 44mm and so on with different degree taper) Thread Button Bits (33mm, 35mm, 45mm to 89mm, 102mm and so different ... series, Mach hammer series (MACH30, MACH40, MACH50, MACH60 etc) 3. Dth Hammers: Hammers Includes: DHD340, DHD350, DHD360, DHD380 Cop34, ...