1.Hollow shaft allows long bolts and threaded rods to pass through tightening applications and longer socket length for easier access to nuts in ceilings and ducts.
2.Made of high carbon steel material with corrosion resistance electrophosphoric finish, high hardness and durability.
3. Universal 6.35mm hex shank is suitable for quick change/release of chucks, drill bits, drivers, screw guns and secure locking.
4.Smooth chamfered corners prevent shaft from chewing or ruining screws, easy to tighten and loosen
5.Suitable for overhead work on ducts, pipes, studs and threaded rods.
6.Note:Please check the size you order.