BBC Drifter Rockdrills  - Specifications

Drill Weight Length Piston Bore Stroke Length Impact Rate Drill Steel Hole
Diameter		 Air Consumption
Copco BBC100 65kg 770mm 100mm 60mm 40 Hz R25-32 35 - 64mm 126 l / s
143 lb 30 in 3.94 in 2.36 in 13/8- 21/2 in 269 cfm
PHQ BBC120 69kg 780mm 120mm 65mm 33 Hz R25-38 35-76mm 167 l / s
152 lb 31 in 4.72 in 2.56 in 13/8 - 3 in 354 cfm

The BBC series of drills is usually mounted on BMS feed assemblies

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