Greenlee 36490 Slug-Splitter SC (Self-Centering) Knockout Punch 1-7/32 Hole Size

The Greenlee 36490 is a high - performance knockout punch. Its conduit hole size corresponds to the outside diameter of US conduit sizes. For example, a 1/2' conduit size punch creates a 7/8' hole. The corresponding die is 36489, and there are different draw studs for various drivers. This punch is built for heavy - duty use. It can punch through 10 - gauge (3.5 mm) stainless steel and mild steel with ease, thanks to its unique slug - splitting design and tool steel construction. The self - centering feature allows it to align on the pilot hole without the need for crosshairs or die alignment marks. The unique punch profile also makes slug removal a breeze. It comes with heavy - duty dies and stainless steel draw studs for long - lasting performance. It has excellent abrasion resistance, suitable for punching fiberglass and plastic. It can be operated with battery, hydraulic, or high - leverage ratchet drivers. It's a replacement punch only.

Using the Greenlee 36490 is quite straightforward. First, make sure you've selected the right draw stud according to your driver type. Place the punch on the pilot hole, and thanks to its self - centering feature, it will align itself automatically. Then use your battery, hydraulic, or high - leverage ratchet driver to start punching. You'll notice that the unique slug - splitting design makes it easy to punch through 10 - gauge stainless or mild steel. After punching, the slugs can be removed easily due to the punch's special profile. When it comes to maintenance, keep the punch clean after each use to prevent debris build - up. Check the heavy - duty dies and stainless steel draw studs regularly for any signs of wear. If you notice excessive wear, it might be time to replace them. Remember, this punch is only for use with the specified drivers, so don't try to use other types of drivers to avoid damage to the punch.