Material: Drill chuck converter made of high density material with good durability and high impact , easy to useAdjustable: 1/2inch square or 1/4inch hexagonal fast load adapter and can be used with toolsInnovation: extended post for easy replacement of the bit and sleeve, stable clamping for easy operationAdvantages: Hex one-hand exchange is allowed during operation and the adapter securely holds any 1/4inch hex handleTo use: Convert the or impact wrench into a drill or ratchet wrench into Type: 1/2-Inch Drive to 1/4-Inch HexSuitable Bit: 1/4 inch Hex colour:BlackMaterial:steelsize:Length: 50mm, Rear diameter: 125mm, Front diameter: 635mmPackage Contents:4 x Hex ConverterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.