General description This adjustable oil filter wrench is designed to remove filters without damaging the filter housing. It features a special serrated design that firmly clamps the filter, ensuring it does not easily fall off. Technical specifications Operating Range: 60-80mm Compatible with 1/2" ratchet wrench or a wrench with a 22mm opening Usage Easy to adjust with an extended spring installed in the wrench, allowing the movable rod to be adjusted easily. Meticulous sanding provides a smoother texture for a comfortable operating experience.