Handheld, Cordless Puller;Constant pull force up to 600 lbs.;Unload Poly Line In Seconds After A Pull - Line slides off tapered capstan when spool wall is removed, no need to reverse the drill;Pull 68% faster than manual pulling;Works most 18v-20v cordless drills;Adjustable boom - The 17” rotatable boom quickly adjusts to fit each job with 3 length positions to choose from. Extend the boom with 1" rigid conduit;Universal Pulling Head - One-size-fits-all pulling head attaches quickly to any size conduit from 1/2” - 4”