Excerpt: This is a review of the Makita Impact Driver model number BTD141 that came in the kit. The Makita Impact Driver is built with a 4-pole maximum torque motor that delivers 1330 in. lbs. of torque. It has a convenient one-touch 1/4′ chuck for simple bit installation. The Impact Driver has a wonderful compact design: 5-3/4″ long and weighs in at only 3.5 lbs. Also very impressive is the electric brake for immediate stops and minimizing kickbacks.