Fein 63127362010 13/16-Inch and 1-Inch HSS Nova 1-Inch Annular Cutter Ability to cut 1/2-Inch up to 1-1/4 Can cut up to 108,000 lbf/in in tensile strength Fairly priced for high performance New to Fein a Weldon shank so you can use Fein's high quality annular cutters on any competitive mag drill Also suitable for aluminum and other non-ferrous metals