Round standard replacement metal punches must be used with a matching die and draw stud to operatePunches quick clean holes through metal up to 10 gauge (check specs for specific punches)Can be used...
Greenlee: Slug-Buster Knockout Kits, 1/2 in - 2 in Description: 1" hex ratchet wrench allows use with both 3/8" and 3/4" draw studs Unique punch profile also splits slugs