Features: *Special direct plus round shank. *High occlusion, can matched perfectly, greatly decrease harm to screw. *Converts drill into a power socket driver. *Spring-loaded ball bearing locks on to sockets. *This set is perfect for your driver or drill, and allows you to replace your ratchet with a power tool. *With weak magnetic on its head, convenient to use, easy to be install and handle. *For use with for SDS PLUS fitting drills. Specification: Product Name: SDS Adapter Material: 40CR steel Color: Grey Size:(Approx.) 1/2” adaptor with SDS shank(75mm) 3/8” adaptor with SDS shank(65mm) 1/4” adaptor with SDS shank(65mm) Shank: SDS round shank Suitable for: most electric screwdrivers, drills and chuck. Quantity: 3Pcs set Package Included: 3× SDS Adapter Note: 1.Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data. EXCELLENT PERFORMANCE: Our products are severely tested for durability by the manufacturer before leaving the factory. QUALITY MATERIALS: Made from durable, premium quality materials that have been rigorously tested by the manufacturer. REASONABLE DESIGN: our products are carefully designed by designers, easy to use and ergonomic. ACCURATE SIZE: well-made, accurate size and precise fit of the equipment you need. SATISFACTION GUARANTEE: Like all products, Please contact us with any questions or issues that you may have. We will be more than happy to assist you.