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- MIL4090
DRILL DMD 375/750 15A SHR
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Diamond coring motors are used with Vac-U-RigŪ and Dymorig diamond core rigs to drill holes into reinforced concrete. This 15 A model provides core drilling power where 20 A service is unavailable. This unit has a 375 rpm or 750 rpm operating speed. The 4090 uses a shear pin to protect gears and motor against overload. Shear pins are easily replaced and extra pins are included with the unit. This unit will handle core bits from 2-1/2 to 8 in Dia.