brand new and high quality Features: SDS Plus Drill 1/4" 3/8" & 1/2" Socket Set Nut Impact Driver Adaptors. SDS Drive Bit Power Drill Socket Driver Extension Adapters 1/4 3/8 1/2. Chrome Vanadium Steel Suitable for Heavy Duty Impact Drivers. Spring Loaded Ball Bearing on for Head Holds Sockets Securely. Suitable for Quick Change 1/4" Chuck Systems or Directly into Drill Chuck. Change Your Hand Socket Set Into A Driven Socket Set. This set is perfect for your impact driver or drill, and allows you to replace your ratchet with a power tool The 1/4" hex shank fits all quick change chucks as well as standard drill chucks. Suitable for a screwdriver or electric screwdriver handle tools (hexagonal hole or three-jaw chuck can) drive sleeve and after use can be installed on the size of the original hexagonal polygons converted to square for head size, which can be used to install the sleeve is a good accessory to convert Specifications: Material: Chrome-Vanadium Steel + Stainless Steel 1/4" x 65mm length (Chrome-vanadium steel) 3/8" x 65mm length (Chrome-vanadium steel) 1/2" x 75mm length (Chrome-vanadium steel) 2 x Electric Hammer SDS Screwdriver Bit Inner Hex Size is standard 1/4 inch(6.35mm) Color: As the picture shown Quantity: 1 Set/5 Pcs Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 2 x SDS Screwdriver Bit 1 x 1/4" adapter 1 x 3/8" adapter 1 x 1/2" adapter