[Material]: The socket adapter is made of high quality alloy with high hardness and impact resistance, and can be used for a long time. High density material, with good durability and high impact resistance, easy to use. They are not rusty, durable and a good helper for electricians and carpenters. [Impact Wrench Adapter]: With this impact wrench bit adapter, you can convert a screwdriver to air or impact wrench into a drill or ratchet [One-handed exchange]: Telescoping adapter, chisel and sleeves interchange easily and tighten securely; During operation, the one-handed hex shank adapter can be firmly connected to any 1/4 inch hex shank bits, such as diamond nails, screwdrivers, etc. [Package]: You will receive 4 pieces 1/2 square to 1/4 hex adapter sleeve. Installation is very simple and can be completed in a minute. You can manually install the hex shank adapter directly without additional tools. [Applicable]: 1/2~1/4 inch impact wrench bit adapter is suitable for electric screwdrivers, this which can rapidly improve work efficiency; It can be used with all types of tips, positioning tips, sleeves and square bars.