3/8" Drive Mini Butterfly Impact Wrench CP7721Benefits 15% SMALLER than any other butterfly impacts Compact Lightweight Powerful Easy operation Durable Features 5. 5 in. 140 mm length, provides easier access to hard to reach places 1. 16 lbs. 0. 53 Kg 80 ft. lbs. 110 Nm in reverse Single hammer mechanism & Aluminum housing Power regulator in the back: 3 positions on both sides Butterfly shift for forward reverse Built in 180 air inlet swivel Ideal tool for transmission and engine repair works,