No need for compressed air! The easier, quieter and environmentally friendly way to drive screws. The three stage planetary gearbox offers a reduction ratio of 93:1, yielding the ideal speed of 200 - 250 rpm. The clutch is adjustable in the range from 3 in-lbs to 9 in-lbs in 5 steps. Tightening torques can be selected precisely. The sixth
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