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 & Durable: Cold and heat treated V steel with thick wall construction provides better torque and helps prevent breakage. Black plating improves rust resistance and prevents outer layer stripping. Application: Ideal for use in auto repair shops for brake jobs, tire changes, and wheel maintenance. Also suitable for home vehicle repairs when the original key is missing, ensuring maintenance and repairs can be completed effectively. Great Replacement for a Lost Key: Effectively replaces a lost anti-theft lug nut key on cars, SUVs, or trucks. The dual hex design ensures a 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 Note: Only the items listed above are included. Light reflection and different displays may cause slight color variations between the image and actual item. Measurement may vary by +/- 1-3cm.