Proto 5 Piece Oil Filter Cup Wrench Set Filter cup wrenches will service 98% of the cars in the U. S. A. Made of super-strong nylon fiber composite that will withstand more torque than conventional metal filter wrenches. Metal insert in wrench. Includes: - 65/67mm, 14 flute oil filter - 74/76mm, 15 flute oil filter - 76mm, 14 flute oil filter cup - 93mm, 15 flute oil filter cup - 76/80/93mm, 30/15/36 flute oil.