This Makita 9557PBX1 4-1/2 inch paddle switch cut-off/angle grinder combines 7.5 AMP power with comfort and motor-protection features for longer-lasting industrial performance. The cut-off/angle grinder also features a range of durability features including labyrinth construction which seals and protects the motor and bearings from dust and debris for longer tool life, as well as a protective zig-zig varnish engineered to seal the armature from dust and debris.