2 standard for your option: 10-inch/12-inch. Auto repairtools used to remove stubborn and difficult to remove oilfilters. 10-inch plier clamp ranges: 55-110mm 12-inch plier clamp ranges: 55-120mm Ergonomic slip grip ensures comfortable working in narrowplaces and provides better . Toolsare designed and made for use by professional technicians and built to performs over a lifetimeof heavy use., Manufacturer: Dcaknri