Adjustable chain length for versatile use: The reversible chain wrench features a 9 inch adjustable chain, enabling easy loosening and tightening of a range of fittings with sufficient reach and leverage. steel for durable performance: Constructed from heat treated steel, the tool achieves hardness up to HRC60, delivering reliable performance under heavy use conditions. Versatile compatibility for common tasks: This oil filter wrench fits up to 6.1 inches in diameter, making it suitable for a variety of applications including pipe fittings, automotive work, and filter installations. Strong, reliable grip with minimal slippage: A firmly connected chain provides a secure holding and catching mechanism, supporting tough tasks without slipping. Use scenarios Automotive oil filters: Remove or install oil filters up to 6.1 inches in diameter, especially in tight engine bays where space is limited. Plumbing and pipe fittings: Loosen or tighten stubborn pipe fittings where a standard wrench cannot reach, thanks to the adjustable chain length. Fuel and other filters: Install or remove fuel filters and similar components in vehicles or machinery that require a secure grip and reliable torque.