Greenlee 35177

Slug-BusterВ® Knockout punch unit .638" (16.2 mm) actual hole size. The contractor's choice - worldwide. Unique punch profile also splits slugs for easier slug removal. Use with battery-powered, hydraulic, ratchet or manual drivers. Uses standard Greenlee dies and draw studs. U.S.Patent #4,543,722 for Slug-Buster.