Greenlee 28165 Slug - Splitter SC (Self - Centering) Knockout Punch is a high - performance tool for electrical conduit work. The hole size of this punch corresponds to the outside diameter of US conduit sizes. For instance, a 1/2' conduit size punch creates a 7/8' hole. The corresponding die is 28166, and there are different draw studs available: 29452 for Hyd. Drivers 7646, 7625 and 12099 for the Ratchet Driver 1904. This heavy - duty punch is engineered to punch through 10 gauge (3.5 mm) stainless steel. Its unique slug - splitting design and tool - steel construction make it easy to work with 10 gauge mild steel and stainless steel. The self - centering feature aligns the punch on the pilot hole, eliminating the need for crosshairs or die alignment marks. It also splits slugs for easy removal. With heavy - duty dies and stainless - steel draw studs, it offers a long service life. It has excellent abrasion resistance, suitable for punching fiberglass and plastic. It can be operated with a battery, hydraulic, or high - leverage ratchet driver. And it has a patent pending.
Using the Greenlee 28165 Slug - Splitter SC Knockout Punch is straightforward. First, select the right draw stud according to your driver type. If you're using a Hyd. Driver 7646 or 7625, pick the 29452 draw stud. For the Ratchet Driver 1904, use the 12099 draw stud. Then, place the punch on the pilot hole. Thanks to its self - centering design, you don't need to draw crosshairs or align die marks. Just start the driver (battery, hydraulic, or high - leverage ratchet) to punch through the material. It can handle 10 gauge stainless steel and mild steel well. When punching, you'll notice that the unique design splits the slugs, making them easy to remove. Remember, this punch is mainly for punching fiberglass, plastic, and metals up to 10 gauge. Don't use it on materials that are too thick or hard. After use, clean the punch and draw studs with a dry cloth to remove debris. Store it in a dry place to prevent rusting. Regularly check the dies and draw studs for wear and tear. If you notice any issues, replace the parts in time to keep the punch working effectively.
