This converter kit includes 3 chrome vanadium steel socket adapters in sizes 1/4'', 3/8'' and 1/2''. It converts power drills into speedy socket drivers for easy and efficient fastening tasks. The kit is suitable for use with screwdriver handles or electric screwdriver tools. Its compact size and durable construction make it a must-have tool for any DIY enthusiast or professional mechanic. Features: - Converts power drills into speedy socket drivers - Applies to the screwdriver handle or electric screwdriver tools. Specifications: Size: 1/4'' 3/8'' 1/2'' Material: Chrome vanadium steel Package included: 3 x Socket Adapters Notes: 1. Manual measuring, please allow 1 ~ 3mm error,thank you. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.