The Walter Surface Technologies Zipwheel Cutter utilizes an 18V/5.2Ah battery and features a ventilated charging system, which extends battery life by keeping the battery cool while recharging. The cutter uses Dynamax electronics for rpm control and consistent speed under load, beveled gears to reduce noise and a front retaining plate and rear bushing to prevent misalignment and reduce vibration. The Zipwheel cutter, designed to be used with Walter’s Zip family of cutting wheels, can drive a 6" cutting wheel. The cutter is available in 4-1/2", 5” and 6” diameters in a limited-time starter kit.