Milwaukee 49 66 4523 Nutsetter, Nut Driver Set, Imperial, 5 16 in Fastening Size, Hex, 1 4 in Shank Size, 3 PK 4TKU4 Air Pressure 80 psi Power Air Pressure 80 psi Power Source Air Powered Nail Gun Type Siding Handle Type Pistol Grip Air Inlet 1 4 in NPT Tip No Mar Collation Style Coil Features Clean Finish Air Pressure Range 80 to 120 psi Max these double end wrenches provide versatility in a compact toolset SHOCKWAVE Impact Duty Magnetic Nut Drivers are engineered with the Most Durable Magnet to withstand heavy duty applications throughout the life of the nut driver 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