Meets ICAR standard Head swivels 360 degrees for ease of operation 8mm diameter hole punch/crimp/flange up to 14 gauge capacity New comfort grip sleeve for positive retention Specifications: Punch Hole Size (mm): 8 Air Inlet (NPT): 1/4 Air Consumption (CFM): 4 Length (In.): 10 Shipping Weight (Lbs.): 3-1/2