The MATCO TLS788 10 Piece Torque Limiting Extension Bar Set is designed specifically for impact wrenches, ensuring durability and reliability for automotive maintenance and repair. This set includes 10 pieces with a size of 1/2 inch, perfect for a variety of applications. The extension bars feature a specialty drive type with a black oxide surface finish, making them resistant to corrosion and wear. With the manufacturer part number TLS788, this set is a valuable addition to any mechanic’s tool collection.