The Monument 361T Box Ring Immersion Heater Spanner is made with an octagon at the base of the cylindrical section to enable really tight immersion heaters to be loosened by striking the handle
The one-piece casting enables full transmission of power to the spanner unlike loose tommy bar types
Overall clearance around the spanner is 7/8in (22mm) allowing easier fitting on insulated copper cylinders
Made in Britain
Product Code: MON361