Specifically designed for metal workers who are consistently on-location without access to power supply, ZIPWHEEL Cutter utilizes 18 V/5.2 Ah battery with Ventilated Charging System, which charges battery while keeping it cool to extend life. Tool leverages DYNAMAX electronics for rpm control and consistent speed under load, beveled gears to minimize noise, as well as front retaining plate and rear bushing to prevent misalignment while minimizing vibration.