Milwaukee 49 66 4523 Nutsetter, Nut Driver Set, Imperial, 5 16 in Fastening Size, Hex, 1 4 in Shank Size, 3 PK 4TKU4 these double end wrenches provide versatility these double end wrenches provide versatility in a compact toolset Measurement Type SAE Finish Chrome SAE or Metric SAE Number of Pieces 7 Includes (2) Socket Bars 6 1 4" Overall Length 1 7 8" Drive Size 5 16" Shank Size 1 4 in Nutsetter Hex Size 5 16 in Overall Nutsetter Length 1 7 8 in Hex Shank Size 1 4 in Tool Insertion Size 1 4 in Hex Fastening Size 5 16 in Connection Size 1 4 in Hex Socket Size 5 16 in Wire Rope Length 1 7 8 in Number of Pieces 3 pc Designed for use with impact drivers and drill drivers