Draper 3 Way Radiator Key, 1/2"

Amazon

Chrome plated hexagon key Square on short arm Two flutes on the 1/2" end of the long arm Chrome plated hexagon key Square on short arm Two flutes on the 1/2" end of the long arm, Weight: 0.4629707502 Pounds, Manufacturer: Draper

Electrical World

Chrome plated hexagon key with square on short arm and two flutes on the 1/2" end of the long arm. For installation and removal of thermostatic radiator valves. Display packed.