This Ingco cordless angle grinder CAGLI201158 has a brushless motor. It has an aluminum alloy headshell with a dust-proof structure design and a heat dissipation system inside. The Ingco cordless angle grinder comes with an anti-slipping rubber handle with a self-locking function that can reduce vibration in operation and will give you better control. This brushless Ingco angle grinder is lightweight and easy to operate. It can be used to polish stainless steel, cutting steel bats, ceramic tiles, and marble with the correct grinding disc ( disc not included )