High hardness: The high hardness triangular transmission shaft is used for the bit conversion head to connect with the electric drill without looseness.Screw fixation: The drill bit conversion head is fixed with bilateral screws, which can fix the drill bit stably without shaking.Anti slip handle: There is an anti slip threaded handle on the conversion head, which is safe to operate without slipping.Two way installable: The drill bit adapter has a two-way installable handle thread port, which can be used by the .Easy to install: Use a small wrench to tighten the screws on the side of the drill head.Colour:orangeMaterial:MetalPackage Contents:1 x Electric Drill Sockets Adapter Conversion HeadOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.