The M12 FUEL 1/2" X 18" Bandfile is the first cordless bandfile that delivers pneumatic performance, size, and features for professional automotive, industrial, and metalworking users. This Milwaukee bandfile delivers the Fastest Spot Weld Removal by leveraging POWERSTATE Brushless Motor Technology. The cordless bandfile delivers UNMATCHED CONTROL with a two-speed setting, Forward/Reverse function, a lock-on button, and a variable speed trigger. The Milwaukee M12 FUEL Bandfile has a Tool Free 360. Arm Rotation and provides GREATER MOBILITY & ACCESS. With the M12 REDLITHIUM XC4.0 Battery, this product removes up to 50 spot welds per charge. Milwaukee REDLITHIUM batteries are the next generation in Lithium-Ion technology. Compatible with all products in the M12 Cordless tool system. REDLITHIUM battery packs will provide unmatched runtime, performance and durability for the professional tradesman. M12 REDLITHIUM 4.0 provides up to 2X more run-time, 20% more power and 2X more recharges than a standard Lithium-Ion battery. REDLITHIUM 4.0 also delivers best-in-class performance in extreme job-site conditions. With Milwaukee durability built-into each pack, the REDLITHIUM 4.0 battery operates cooler and performs in climates below minus 18°C/0°F with fade free power.