Power Nut Driver Set 14 Piece SAE and Metric Hex Shank Works in Cordless Drills Metal Body 7pc SAE Driver Sizes: 3/16, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16 7pc Metric Drivers: 5.0, 5.5, 6.0, 7.0, 8.0,10, 12mm Plastic Holster Shank Fits Most Power Tools, Corded or Cordless!! Perfect Addition to Any Man's Tool Box!