Oil Filter Wrench – Heavy Duty

An oil-filter wrench is a tool for removing spin-on type oil filters. These filters are smooth, cylindrical canisters with knurling on the bottom that are difficult to grip, especially when they are oily. The loop of chain is placed around the filter, and the bar is turned anticlockwise by hand until the chain wraps itself tightly around the filter. A socket wrench or adjustable spanner is then used to turn the hexagonal bar further in the same direction. This increases the tension in the chain, which bites into the soft metal casing of the oil filter which helps prevent slippage.