High-quality materials: Our electrical socket bits are made of high-quality chrome-vanadium steel, providing excellent hardness. exceptional durability and long life, you can count on their robustness for all your DIY and professional work needs. Size Details: Socket screwdriver bit size 6mm/7mm/8mm/9mm/10mm/11mm/12mm/13mm/14mm/15mm/16mm/17mm/18mm/19mm, They cover a wide range of sizes, from 6mm to 19mm, to meet all your requirements. Easy to use: Our socket wrench screwdrivers impact designed for use with heavy duty sockets and extensions, making them perfect for securely loosening and tightening screws and nuts in even the most demanding situations. Widely used: Whether you're a DIY enthusiast, a professional or a skilled tradesman, our 6-19mm socket driver bits fit all. Package Contents: You will get 14 pieces deep impact driver socket kit, the slim profile of our bits allows you to work easily in tight spaces, making them ideal for bolting nuts.