Different Bit design, different Characteristics,
You could select the Carbide Button Shape:
High Air Pressure DTH drill bit:
SP Shank drill bits, DHD shank drill bits , QL shank drill bits,
Numa Shank drill bits, W shank drill bits, Mission Shank drill bits
SD shank drill bits, SP 1880+ SP330 Shank drill bits
We have been widely supplying our Hammers & Bits etc. to Australia, Europe, Russia, America, Brazil, South Africa, Nigeria, Chile etc. all enjoy very nice feedback.