The OTC BMW Head Bolt Socket (5940) is a high-quality tool designed to efficiently remove and install cylinder head bolts on BMW M42 and M50 engines.KEY FEATURES AND BENEFITS: Precise Fit: Engineered to perfectly fit the specific bolt pattern on M42 and M50 engines. Spring-Loaded Detent Ball: Securely holds the bolt in place, preventing accidental drops.SPECIFICATIONS: Socket Size: E12 Drive Size: 1/2 inch Material: High-quality steelHOW TO USE: Identify the Bolt: Locate the cylinder head bolt you need to remove or install. Insert the Socket: Align the socket with the bolt head and slide it onto the bolt. Engage the Detent Ball: Push the socket onto the bolt until the detent ball clicks into place. Use Your Tool: Attach a 1/2 inch drive ratchet, breaker bar, or torque wrench to the socket. Remove or Install the Bolt: Turn the tool to remove or tighten the bolt as needed.BENEFITS OF USING OTC BMW HEAD BOLT SOCKET (5940): Efficient Work: Quickly and easily remove and install cylinder head bolts. Reduced Risk of Damage: The secure fit and spring-loaded detent ball minimize the risk of damaging the bolt or socket. Professional-Grade Tool: Experience the quality and reliability of a tool designed for demanding automotive tasks.FEATURES: Durable Construction: Built to withstand the rigors of professional use. Compatible with Standard Tools: Works with 1/2 inch drive ratchets, breaker bars, and torque wrenches.