Morse MHS03U (177832), 8 piece, general utility hole saw kit contains bimetal hole saw diameters more propular for common applications. Kit includes 3/4, 7/8, 1-1/8, 1-1/2, 1-3/4, and 2-1/2 diameter, bimetal hole saws, one (1) MA34, 3/8 shank (1/2-20) standard arbor, one (1) MA45PS, 1/2 shank (5/8-18) pin drive arbor, and carrying case.