The Greenlee K3BB-1/2 knockout set is a must - have for electrical work. It comes with a 1/2' Slug - Buster® Punch, a 1/2' Die, and a 7/16' Manual Draw Stud. This set is designed for 1/2' Conduit (0.89' or 22.5 mm). The punch has a knurled edge for a better grip and laser markings for quick part identification, along with alignment markings for improved accuracy. Both the punch and die are made in the USA. It can be used with the KRW - 1 ratchet wrench and replaces the 71BB model. The set measures 3.5 inches in length, width, and height, with a volume of 42.875 cubic inches.
Using the Greenlee K3BB - 1/2 knockout set is straightforward. First, select the right punch and die for your 1/2 conduit. Attach the punch and die to the material where you need to make the knockout. Then, use the 7/16' Manual Draw Stud along with the KRW - 1 ratchet wrench to apply pressure and create the hole. When using the set, make sure to keep your hands clear of the punch and die area to avoid any injuries. Also, check the material for any sharp edges or debris before starting. For maintenance, after each use, clean the punch and die with a dry cloth to remove any dirt or metal shavings. You can also apply a light coat of lubricant to keep the parts in good working condition. Store the set in a dry place to prevent rusting.
