3/16" Tapered Head. Attaches to the Male Threaded End Fitting on the Duct Rodder, and it guides the duct rod through the conduit. It also allows a pull line to be attached to the duct rod with an eye in the tip. This durable tapered head is designed to provide maximum durability and stability as you guide the rods through the conduit. It also allows you to securely attach a pull line with the eye in the tip for added convenience.