Quality hex key screwdriver set with black ProGuard™ finish. Made of US made Protanium™ industrial high torque steel. The ergonomic handle is a 2-component design with a tough thermoplastic core and a non-slip cushioned rubber outer. The slight texture helps retain grip with oily hands. The hexagonal anti-roll feature keeps the screwdriver where you place it. All handle dimensions are proportionally sized to match the torque requirement for the specific tip size. 13 pieces. Includes .050; 1/16; 5/64; 3/32; 7/64; 1/8; 9/64; 5/32; 3/16; 7/32; 1/4; 5/16; 3/8". Comes with ball-ends enabling you to work in hard to reach places under a maximum angle of 25°.