Down the Hole (DTH) Hammer Bits - Drilling Supply
2020-11-10 · Weight (no bit) 100.5 kg 222 lbs Outside Diameter 146 mm 5.7 in Shoulder-to-Shoulder Length 1082 mm 42.6 in Length (with bit retracted) 1184 mm 46.6 in Length (with bit extended) 1218 mm 48.0 in Hole Diameter range 165–203 mm Check Valve6.5–8.0 in Bit Shank Type QL60 Connection Thread* 3 ½ in API reg
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