10-Piece XZN triple square spline bit socket set includes: 1/4" Drive: 4mm, 5mm, 6mm(tamper proof); 3/8" Drive: 8mm, 9mm, 10mm, 12mm, 14mm (tamper proof); 1/2" Drive: 16mm (tamper proof), 18mm (tamper proof).
- Bits are made from Drop-forged, heat-treated S2 steel for superior hardness that reduce wear-outs and insure longevity, Sockets are made from heat treated chrome vanadium steel for strength and durability.
- Precisely and automatically machined bit tips to ensure accurate size, chamfered bit ends insert smoothly into fasteners and protect both bits and fasteners from damaged edges.
- To tighten and untighten high torque triple square screws and bolts commonly used in the alternator and pressure plate of European cars.
- Sizes: 1/4" Drive: 4mm, 5mm, 6mm;3/8" Drive: 8mm, 9mm, 10mm, 12mm, 14mm ;1/2" Drive: 16mm , 18mm.
- Set includes a sturdy plastic organizing case for secure storage and easy carrying.