4-1/2" Type 27 Rear Exhaust Angle Grinder. 5/8"-11 Spindle. Features rear exhaust and heavy-duty angle heads with a robust bevel and pinion gear design that provides superior power and extended tool life. Heavy-duty steel constructed industrial grinders for the toughest applications. Ideal for foundry welding, petro chemical, deburring and finishing. Includes dead handle.