Monument 4501F Grip+ R2 3-Stepped Radiator Valve ToolThe Monument 4501F Grip+ R2 is a 3-stepped radiator valve tool designed to fit most radiator end caps and valves. Its versatile design allows for improved access when used with specific Monument handles and wrenches.Features Fits most radiator end caps and valves 3-stepped design for versatile use Compatible with MON4537 Shorty Swivel Head Handle and MON345 Pro Adjustable Basin WrenchSpecifications Brand: Monument MPN: 4501F EAN: 5015375045018 Sizes: 10mm & 12mm Slotted and 1/2in A/F Hex