Morse MHS16P (177818), 16 piece, plumbers hole saw kit contains bimetal hole saw diameters that allow pipe pass through, and tapping, of common diameters of black iron, copper and PVC/ABS. Kit includes 3/4", 7/8", 1-1/8", 1-1/2", 1-3/4", 2-1/4", 2-9/16", 3", 3-1/2", 4", 4-1/4", and 4-1/2" diameter, one (1) MA34, 3/8" shank (1/2"-20) standard arbor, one (1) MA45PS, 1/2" shank (5/8-18) pin drive arbor, one (1) high speed steel replacement pilot drill, and carrying case.