This 3/8" Capacity Electric Tapper by Fein (GWP10) has exceptional speed thanks to reversing gear for automatic rotation reversal when withdrawing the drill spindle from the threaded hole along with a fast 680 RPM return for shorter cycle times. The tapper has outstanding precision thanks to a play-free connection of drill shaft and tapping chuck using a B12 tapered mount for high concentricity accuracy. Accurate tapper mounting in the tapping chuck for best work results. The FEIN Sensitive Grip applies the feed pressure directly along the tapping axis with the guiding hand ideally positioned. Power provided by a Fein stable speed high-performance motor. Tapper comes with a metal gear head, torsion-free barrel-type motor housing and a width across corners only 29/32" (23 mm).