<b>Description</b><br> This CASOMAN 6 Pieces Bit Adapter Set includes: 2pc 5/16"Hex Shank Bits Holder x 1/2" Drive Socket Coupler, 2pc1/4"Hex Shank Bits Holder x 1/2" Drive Socket Coupler, 2pc 1/4"Hex Shank Bits Holder x 3/8" Drive Socket Coupler. They are made from heavy-duty Chrome-Vanadium steel alloy holds up to even high-torque applications. It could work with hand ratchets & driver handles, power tools, also available for 3/8" Drive & 1/2" Drive, use with any 1/4”and 5/16”shank quick-change bits-screwdriver,Torx,Hex and Power Nut Driver Bit also. It meets or exceeds ANSI performance standards and comes with 1 year quality warranty. <br><br> <b>Include</b><br> 2pc 5/16"Hex Shank Bits Holder x 1/2" Drive Socket Coupler <br>2pc 1/4"Hex Shank Bits Holder x 1/2" Drive Socket Coupler <br>2pc 1/4"Hex Shank Bits Holder x 3/8" Drive Socket Coupler<br><br><br> <b>CASOMAN is a professional manufacturer of hand tools,rachet and all kinds of sockets products. We save customer's cost in each step of our operation,with a guarantee of high-quality and reliability. We delivery the most saving and best value to our customers.Choose the CASOMAN products and you will never worry about overpaying or any after sale service. All CASOMAN products come with 1 year quality gurantee. </b>