This tamperproof Spline bit is specifically designed for gear box and sump plugs on Audi A3/A4/A6 models.

• Undersized to avoid damage to sump plugs.
• M16 x 1/2"Drive
• Specifically designed for gear box and sump plugs on Audi A3/A4/A6 models plus Volkswagen Golf IV & LT.
• Made from chrome molybdenum steel for resistance against rust & corrosion enough to withstand the necessary impact of the daily grind.
• Tamperproof format with center hole.