These are upgrades for the aluminum tubes with older ends or replacements for damaged parts. They have a 7/16 quick change drive bit for DRILLS, NOT IMPACTS. they work in all 1/2 regular drills or 7/16 with quick change. Cap works in al6, al24 and cf24 tubes
NOTE, these are not made for hard money guns or any high torque ugga-duggas. 1/2″ or smaller drills only. Hole hawg drills OK
