Slice through sheet metal, muffler clamps, and steel rods up to 3/4in. thick. Uses an abrasive cut-off wheel which spins at 22,000 rpm for fast cutting in tight places. Has 1/4in. NPT air inlet and uses 4 cfm at 90 p.s.i.. Will work on 1 hp or larger compressor. Face shield recommended. Can be used with our 3in. Cut-Off wheels sold in a pack of 5 (28105), pack of 10 (28084D) or Pack of 30 (28084C).