Slim JIMS Oil Filter Wrench is the slimmest oil filter wrench in the industry This exclusive design makes it much easier to navigate near both the oil cooler and the crankcase position sensor, and allows you more room to work around the exhaust pipes, frame, hoses and brackets, etc This tool incorporates a 3/8" square drive and guarantees a good grip on any spin-on oil filter with a 14-flute end Backed by a lifetime manufacturer's warranty