Fitment: 6 point fuel rim lug nut key compatible with six spline M12x1.5, M12x1.25, and 1/2 inch-20 thread pitch wheel lug nuts. ID: 17.8mm (0.7 inch), OD: 20mm (0.8 inch), Depth: 45mm. This spline tuner lug nut key works with both 19mm (3/4 inch) and 21mm (13/16 inch) hex socket wrench. Fitment: 7 point fuel wheel lug nut key compatible with seven spline M14x1.5, M14x2, and 9/16 inch-18 thread pitch security wheel lug nuts. ID: 20mm (0.78 inch), OD: 23mm (0.9 inch), Depth: 43mm. This locking lug nut socket works with both 21mm (13/16 inch) and 22mm (7/8 inch) hex socket wrench. Sturdy construction: Cold and heat treated steel with thick walls provides better torque and helps prevent breakage. Black plating on the wheel lug nut wrench improves rust resistance and prevents outer layer stripping. Application: In the auto repair shop, mechanics can use the tire socket wrench for performing brake jobs, tire changes, and wheel maintenance to keep vehicles in optimal working condition. The fuel rim lug nut key is also essential for home vehicle repairs when the original key is missing or misplaced, ensuring that maintenance and repairs can still be carried out effectively. Great replacement for a lost key: Star lock lug nut key replacement works well to replace a lost anti-theft lug nut key on car, SUV, or truck. The dual hex design ensures secure fit and makes installation or removal easier. Color: Black. Material: Carbon steel. Package Contents: 1x 7 Spline Lug Nut Socket, 1x 6 Spline Lug Nut Socket. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. Measurement may vary by +/- 1-3cm.