An injection molding tool for an injection molding machine, which injection molding tool has an injection mold that comprises - an injector mold plate having a first injector mold plate face and an opposite second injector mold plate face, - an ejector mold plate having a first ejector mold plate face and an opposite second ejector mold plate face, - the first injector mold plate face faces towards the first ejector mold plate face, - at least one tempering medium channel (11;14) that connects a tempering medium inlet (23;25) of the injection mold to a tempering medium outlet (24;26) of the injection mold for in turns circulating a heating medium and a cooling medium during an injection molding cycle, characterised in that - the at least one tempering medium channel (11;14) is a chicane of a series of tight turns that traverses an area of at least one of the second injector mold plate face and the second ejector mold plate face and defines a free opening (30;33) in said respective second mold plate face (5; 7) along at least a length of the at least one tempering medium channel (11;14), - which free opening is arranged for first being closed when the injection mold is fitted on the injection molding machine, wherein the injection molding tool has - a first sealing plate which is sealingly securable to the second injector mold plate face, and - a second sealing plate which is sealingly securable to the second ejector mold plate face, - a first insulation plate which is disposed on the first sealing plate facing the second injector mold plate face, and - a second insulation plate which is disposed on the second sealing plate facing the second ejector mold plate face. - an injector mold plate having a first injector mold plate face and an opposite second injector mold plate face, - an ejector mold plate having a first ejector mold plate face and an opposite second ejector mold plate face, - the first injector mold plate face faces towards the first ejector mold plate face, - at least one tempering medium channel (11;14) that connects a tempering medium inlet (23;25) of the injection mold to a tempering medium outlet (24;26) of the injection mold for in turns circulating a heating medium and a cooling medium during an injection molding cycle, - the at least one tempering medium channel (11;14) is a chicane of a series of tight turns that traverses an area of at least one of the second injector mold plate face and the second ejector mold plate face and defines a free opening (30;33) in said respective second mold plate face (5; 7) along at least a length of the at least one tempering medium channel (11;14), - which free opening is arranged for first being closed when the injection mold is fitted on the injection molding machine, - a first sealing plate which is sealingly securable to the second injector mold plate face, and - a second sealing plate which is sealingly securable to the second ejector mold plate face, - a first insulation plate which is disposed on the first sealing plate facing the second injector mold plate face, and - a second insulation plate which is disposed on the second sealing plate facing the second ejector mold plate face.