This strap is the same as a bicycle chain, and is placed over the oil filter and tightened.
Oil filter wrench chain strap adaptor
The adaptor connects the drive and the chain.
Oil filter wrench chain strap drive
The drive allows tools with a square or hexagonal drive to be used with this wrench. The hexagonal drive is the exterior of the adaptor with the square hole in the middle of the adaptor being the square drive. The depth of the square hole will be the same length as the square drive on the head of the tool.
What sizes do oil filter wrench chain straps come in?
The size of the oil filter that can be removed is directly related to the size of the oil filter wrench. Oil filter wrench chain straps usually have a capacity of 120mm (4½ inches approx.).
