1-7/16 RotaCut™ Hole Cutter. For materials up to 1/2 thick. Produces clean burr-free holes 3x faster and lasts 10x. For use with arbor 11005 or 11012. Produces clean burr-free holes quickly in sheet metal and plate materials. Cuts holes 3 times faster and lasts up to 10 times longer than twist drills or hole saws. Use in hand-held drills or drill presses. For materials up to 1/2 (12.7mm) thick. Requires arbor: 11005 or 11012. Made in USA.