Greenlee 660 Quick Change Stainless Steel Hole Cutter Kit (7/8, 1-1/8, 1-3/8, 1-3/4, 2)

Using the Greenlee 660 hole cutter kit is a breeze. First, pick the right cutter head for your conduit size. Attach it to the quick - change arbor with a simple push and turn. Then, insert the arbor into your drill with a chuck size of at least 3/8 inch. When drilling, the flange stop will prevent you from going too deep. If you're using a size above 3/4 inch, the ejector spring will help you remove the slug easily. Remember, the pilot drill has a split - point tip to keep it from wandering. When you're done, store the kit in the provided case. For maintenance, clean the cutter heads and arbor after each use. Check the carbide teeth regularly for wear and replace the pilot drill if it gets dull. This will keep your kit in top shape and ensure it lasts for a long time.