US PRO Triple Square Spline Bit Socket Set 1/4 3/8 1/2 Drive XZN M4-M18 3993
Triple Square bits are suitable for use with XZN® fixings. Part No 3993. 1/4" Dr: M4, 5, 6 (Length 37mm). Triple Square Socket Set. 1/2" Dr Tamper Proof: M14, 16, 18 (Length 55mm). e.g: ordered by mistake, wrong size ordered etc.