13 Piece, Inch BallHex Key Set, Includes 050, 116, 564, 332, 764, 18, 964, 532, 316, 732, 14, 516 38, Turns 360 Degree At Up To 25 Degree Angle, Extra Torque 8650 Chrome Nickel Alloy, Heat Treated For Maximum Strength, Black Oxide Finish To Resist Rust