Universal fit 1/4-Inch hex shank power nut drivers with detents * Forged and hardened chrome vanadium steel with a corrosion-resistant sandblasted finish * Set Includes: (7) Power Nut Driver Bits (SAE): 3/16, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16-Inch; (7) Power Nut Driver Bits (Metric): 5, 5.5, 6, 7, 8, 10, 12mm * Complete with work belt storage clip * Lifetime replacement guarantee