REBRA spline lug nut key set — 8-piece 12/11/7/6/5-spline kit, black oxide chrome-moly for aftermarket wheels

REBRA’s 8-piece spline lug nut key set gives you the exact spline profiles and sizes needed to remove and install most aftermarket spline lug nuts safely and without rim damage. If you own aftermarket wheels or swap rims regularly, having the correct spline key saves time and prevents stripped nuts or scratched finishes. This compact set includes the common 12-, 11-, 7-, 6- and 5-spline profiles in the diameters installers most often need, built from heat-treated chrome-molybdenum steel and finished in black oxide for corrosion resistance and longevity.

How do I know which key in the set fits my wheel?

Identify the spline count and measure the nut diameter before ordering to match the correct key. The set includes laser-etched markings for quick selection, and the walls are thin to reach recessed lugs without marring the rim.

• Count the splines on the nut (12, 11, 7, 6 or 5).
• Measure outside diameter (common sizes listed on the set).
• Match to the chart: the 13/16" key is 12-spline only; others cover 11/16", 5/8", 3/4" and nearby fits.
• Note: not compatible with hex, spike, inner-style, 10-spline, or factory wheel locks.

What tools work with these spline keys?

Each key accepts a double hex drive so you can use standard lug wrenches, breaker bars, or 13/16" and 7/8" sockets you already own. The universal drive keeps this set versatile for roadside changes and garage work.

• Double hex drive fits common lug wrenches and hand tools.
• Use 13/16" and 7/8" sockets on compatible adapters.
• Laser-etched sizes help you grab the correct key quickly in low light.
• Thin-wall design reaches tight recesses while avoiding rim scratching.

Are these keys durable enough for repeated tire changes?

The REBRA keys are heat-treated chrome-molybdenum steel with a black oxide finish for strength and corrosion resistance. Designed for frequent wheel swaps, their construction resists rounding and stands up to the torque used during lug removal and installation.

• Chrome-molybdenum steel for high tensile strength.
• Heat-treated and finished in black oxide to reduce corrosion.
• Thin but strong walls for access without deformation.
• Laser etching preserves markings through heavy use.

What sizes and spline patterns are included in the set?

This 8-piece collection covers the most common spline lug patterns and diameters used on aftermarket wheels. The 13/16" key is exclusively 12-spline; the other keys provide overlapping sizes to increase compatibility with a wide range of nuts.

• 12-spline: 13/16" and 11/16".
• 7-spline: 3/4", 11/16", and 5/8".
• 6-spline: 41/64" and 45/64".
• 5-spline: 5/8".

Who is this for If you rotate wheels, swap rims, or own aftermarket wheels on cars, SUVs, vans or light trucks, this set is a practical investment for your garage, trunk kit or professional toolbox. It’s aimed at DIY enthusiasts, mobile technicians and anyone who wants the right spline fit without hunting through individual keys or risking rim damage. Always confirm spline count and diameter before use to guarantee compatibility.

FAQ

Q: Will this set fit factory wheel locks?

A: No. This set is for aftermarket spline lug nuts only and does not fit factory wheel locks or 10-spline patterns.

Q: Can I use my standard lug wrench with these keys?

A: Yes. The double hex drive fits standard lug wrenches and 13/16" or 7/8" sockets for common tools.