【High-Quality Materials】The radiator spanner is made of high quality chrome vanadium steel material, which is high temperature resistant, corrosion resistant, sturdy and durable, optimal dimensional accuracy and high hardness values. 【Universal - Five-Stage Step Wrench】Radiator valve key, with the 5 levels 3/8, 1/2, 3/4, 1-1/4 inch, and the stepped radiator wrench is directly installed on the 1/2-inch ratchet wrench for quick removal and installation. 【Design】The radiator lockshield valve key continuous pin groove provides maximum gripping strength for effortless loosening of tight fittings. Due to the special design of the universal radiator key, no tilting in nipples and screw connections is possible. 【Multifunctional Application】Radiator valve spud wrench, for effortless loosening of tight fittings, for installing and removing most pipes and radiator components, such as radiator valves, return fittings, thermostats and drain fittings, etc. 【Box Contents】 1 x Five-Stage step wrench, The radiator key with square socket, which is firm and safe. Designed for effortless plumbing and repair works., Weight: 0.3196702799 pounds, Manufacturer: SRAMZ