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For electricians and metalworkers, this Greenlee 7610SB knockout kit is a serious time-saver. It's a professional-grade hydraulic punch set that makes clean holes in metal panels, boxes, and enclosures for conduit from 1/2 inch all the way up to 4 inches. The heart of the kit is an 11-ton hydraulic ram driven by a foot pump – this frees up both your hands to position the punch perfectly. It comes with a range of punches and dies: Slug-Buster style for 1/2\ to 2\ (these split the slug for easy removal), and Standard Round for 2-1/2\ to 4\. It also includes the necessary draw studs and a rugged carrying case. Features like alignment markings, knurled edges for grip, and 'dog point' tips on the studs to prevent cross-threading make it user-friendly. It punches holes significantly faster and with less effort than manual methods. A must-have tool for any pro or serious DIYer doing electrical or fabrication work.
4.8 out of 5