Greenlee is a popular manufacture of many products used in the Electrical, Mechanical, Voice/Data and many other trades. The manufacture a quality line of products for making holes including Slug Busters Knockouts, Step Bits (Unibits), Diversibits and other products. Greenlee is well known for there mechanical conduit benders and hand conduit benders. Greenlee is also popular for the wire reel stands, fish tapes, and cable termination tools. Greenlee - There For You.