Greenlee 28156 Slug-Splitter Self-Centering Knockout Punch, 1-1/9-Inch Replacement Parts 9-Percent pure copper for spark

9-Percent pure copper for spark free use in explosive environments Softer copper heads will not mar struck objects Ideal for coal mining

and masonry materials

The patented Flexicore cable is made from two layers of spring wire wrapped tightly around a wire rope center

A quick change adapter is also included to help you to drill

Hard walled pipes

Greenlee 28156 Slug-Splitter Self-Centering Knockout Punch, 1-1/9-Inch Replacement Parts 9-Percent pure copper for sparkGreenlee Slug Splitter SC heavy duty punches are designed to punch up through 10 gauge (3. 5 mm) stainless steel. Unique slug splitting design and tool steel construction easily punch 10 gauge (3. 5 mm) mild steel and stainless steel. The self centering punch aligns itself on pilot hole. No need to draw crosshairs or line up die alignment marks. The unique punch profile also splits slugs for easier slug removal. The dies and stainless steel draw studs