Low Profile, 6 Point Wrench with Offset 3/8" Square Drive for Clearance in Hard-to-Reach Spaces. Size is Laser Marked on Each Wrench with a Blow-Molded Case for Storage. Use on oil and fuel filter canisters when replacing the element. 40610 - 24mm for Cadillac and some BMW 40620 - 25mm for Fleetguard Filter on Motorhomes, Buses, and Some Medium Size Trucks with Cummins Engine. Also Some K&N Filters 40630 - 27mm for 2003 and later Mercedes 1.8L, Smart and some VW 40640 - 28mm for 2010-2018, 6.7L Dodge Cummins Fuel Filter Canister 40650 - 29mm (1-1/8") for Dodge Cummins Fuel Filter Housing 40660 - 32mm (1-1/4") for GM Ecotec, 2.0L, 2.2L and 2.4L Four Cylinder Oil Filter Housing; Some Saturn & Saab 40670 - 36mm for Ford 6.0L Diesel Fuel and Oil Filter Housings, Mini Cooper and some BMW Oil Filter Housings, and Mack Truck Oil Filter Housing