The Makita 18V Lithium-Ion Cordless 4-Piece Combo Kit (XT421) is built for the pro-user who requires compact and powerful cordless tools for a wide range of drilling, driving and fastening tasks. The XT421 offers cordless fastening options to air powered impact tools, and was built for automotive work, assembly, and more. It’s part of Makita’s expanding 18V Lithium-Ion series, the world’s largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery. Makita 18V Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger. For improved tool performance and extended battery life, Makita created Star Protection Computer Controls™. Star Protection is communication technology that allows the Star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating. For increased versatility, the tool can also be powered by Makita 18V LXT® and Compact Lithium-Ion batteries with the star symbol on the battery indicating Star Protection inside. Makita’s XT421 includes a high torque ½” impact wrench with a large rocker switch and 1/2” square drive with detent pin that delivers 325 ft.lbs. of torque for a wide range of fastening tasks, including removing transmission bolts and lug nuts. The 3/8” impact wrench delivers 155 ft.lbs. of torque in a compact and ergonomic design that weighs only 3.4 lbs. with battery. Both tools are engineered with Makita’s proprietary hammer and anvil impact mechanism, which is manufactured using the best raw materials with the highest quality steel and unique heat hardening process for maximum fastening and driving power. The XT421 also includes a ½” driver-drill with 480 in. lbs. of Max Torque, with a two speed all-metal transmission that delivers 0-400 RPM in low speed and 0-1,500 RPM in high. The rechargeable flashlight with Xenon bulb has 4 positions and 4.3 hours of run time on a single charge of the BL1830 battery. The kit includes two 18V LXT® Lithium-Ion 3.0Ah batteries, a Rapid Optimum Charger, and tool bag.