Keyless Drill Chuck 3 Jaw 1/2in Square To 1/4in Hex 2‑13mm Clamping Range
Good Material: Combining premium plastic and iron materials, not easy to deform and has excellent durability for long work. Clamping Range: Approx. 2 ~ 13mm / 0.08 ~ 0.51in. Function: 3 jaw chuck used for electric wrench conversion.