CTA Tools 2570 Low-Profile Metric Cap Socket - 27-Millimeters is a low-profile metric hex socket designed for removing and installing oil filter housings caps with cartridge-type filters. It is made from chrome vanadium steel with a black finish. This socket is for use on Mercedes, Smart, Hyundai, Fiat, Kia and Hyundai models with 3/8-inch square drive tools. Heavy-duty construction allows for strength and durability. Applications include: COC9713, CH10515, CH6848, HU514X, L25848, L25848, S11794, S11955, S6848, S9713, S10515XL, S10855XL, S11955XL, S10515, S10855, S11794, S11955, VO99, VO62. Whether tuning up your '68 Corvette or changing the oil on a John Deere tractor, CTA can supply you with the tools needed to do the job. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.