7 Piece, Inch Ball-Hex Key Set, Includes: 5/64", 3/32", 1/8", 5/32", 3/16", 7/32" & 1/4", Turns 360 Degrees At Up To 25 Degree Angle, Extra Torque 8650 Chrome Nickel Alloy, Heat Treated For Maximum Strength, Black Oxide Finish To Resist Rust, Made In USA.