General description Chrome vanadium steel cup-type sockets with an anti-rust, electro-black oxide finish designed for removing and installing different sized oil filters on various vehicle models. The socket-like grip minimizes the risk of crushing filters and is compatible with 3/8 or 1/2" square drive wrenches. Technical specifications Material: Chrome vanadium steel Finish: Anti-rust, electro-black oxide Socket sizes included: 36 face cup (96mm), 30 face cup (76mm), 7 x 15 face cups (74/76, 75/77, 80, 80/82, 90, 93, and 100mm) Adaptor: 1/2 - 3/8" Other information Includes a tough storage case