Chicago Pneumatic Sales [Power Tools Division] manufactures 4inches Heavy Duty Angle Grinder. Chicago Pneumatic Sales [Power Tools Division], an ISO 14001 registered company supplies ratchets wrenches, drills, screwdrivers, grinders etc. 4inches Heavy Duty Angle Grinder is powerful 6 hp high performance motor which is used for fast, efficient grinding in tight quarters. 4inches Heavy Duty Angle Grinder is excellent for weld preparation and smoothing, rust removal, debarring and blending of steel, cast iron and aluminum. It is available in the model no. Of CP854.