Crimps for heating, ventilating and air conditioning. Made from quality steel for better edges with a treated industrial finish to help prevent rust. Cushion grip handles. Use for joining sheet metal pipes of the same size (can be corrugated, round or square) or repairs in the field. Matte black finish and red plastisol grips. Compound action. Throat measures 9-1/4 in L x 1-1/4 in D.