US PRO 1/2" Drive Tamper Spline Bit Socket M16 x 55mm

This purpose-built tamper spline bit socket (M16) is designed to fit splined gearbox and sump plugs commonly found on Audi A3, A4 and A6 models. The 55 mm length gives good engagement with recessed plugs while the ½" drive allows use with standard ratchets and tools.

✅ Key Features

• Size: M16 spline bit socket
• Drive: ½" (1/2" drive) for standard workshop tools
• Length: 55 mm overall for secure engagement on recessed plugs
• Tamper Spline: Fits tamperproof / splined gearbox and sump plugs
• Vehicle Fitment: Suited to many Audi A3, A4 and A6 applications (please check part compatibility)

📦 What’s Included

• 1 × US PRO M16 × 55 mm Tamper Spline Bit Socket (½" drive)

⚠️ Fitment Note

Please confirm your vehicle’s plug size and spline pattern before purchase. If in doubt, compare with your existing plug or OEM reference.