3pcs 1/4 3/8 1/2 Inch Socket Adapter Socket Screwdriver Impact Hex Chuck Hex Extension Bit Bits with Steel Ball SetFeature:1. It is made of high-quality CR-V material, excellent workmanship, hard, durable and accurate.2. Spring lock ensures a snug fit on the driver head to prevent slipping during use.3. After special processing, it can be installed confidently in a hand screwdriver, drill screwdriver or impact wrench.4. Lightweight, fast, can be connected to a standard hex screwdriver. The function head has locking and magnetic functions.5. The gearbox is mounted in a die-cast body with 3 sets of ball bearings for long-term durability. The 1/4 inch hexagonal drive shaft can be quickly replaced and is suitable for most electric drills and screwdriver chucks. Specification:Material: CR-VR Drill Bit Size: 6.35mm Quantity: 3pcsNote:1. Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-2cm measurement deviation due to manual measurement.3 X Drill Socket Adapters