Control keys Twinkey KNIPEX Multifunctional key for operating locks from technical areas of buildings (heating and sanitary, air-conditioning and ventilation, electrical engineering), gas and water supply and shut-off systems. 2 keys connected by magnets to save space. Reversible bit: 1.0 x 7 mm slot and PH2 cross recess. Spanner and reversible bit linked by a sturdy stainless steel wire. Weight-optimised die-cast zinc construction. Dimensions 92 x 85 x 23 mm