Material: drill chuck converter made of high-density material with good durability and high impact resistance, easy to useAdjustable: 1/2 inch square or 1/4 inch hexagonal quick load adapter, and can be used with power tools: Extended post for easy drill bit and sleeve, stable clamping for easy operationAdvantages: hex socket adapter one-hand replacement is allowed during operation, and the adapter securely holds any 1/4-inch hexagonal chuckIn Use: turn your air or power impact wrench into a drill or ratchet wrenchType: 1/2-Drive Inch to 1/4-Inch HexSuitable Bit: 1/4-Inch HexColor: BlackMaterial: SteelSize: Length: 50mm, Back Diameter: 12.5mm, Front Diameter: 6.35mmPackage Contents:4 x Hex ConverterOnly the above package content, other products are not included. Note: The light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.