GearWrench 3861D 3/8” Drive 15 Flute Oil Filter End Cap Metric Wrench 74 and 76mm The GearWrench 3861D 3/8” Drive 15 Flute Oil Filter End Cap Metric Wrench 74 and 76mm provides high torque capacity, and can handle 140 ft-lbs. of torque to remove even the most stubborn filters. Competitive filter cap wrenches do not even come close to the capacity of the GearWrench 3861D 3/8” Drive 15 Flute Oil Filter End Cap Metric Wrench 74 and 76mm. The Metal Drive insert will not deform or break even after years of service.