Abstract: Utility knife with a replaceable blade and a system and method for determining the End of Life of the blade comprising one or more sensors for detecting blade use, a communication unit adapted to establish a wireless connection to a computer cloud network and to send and receive information via wireless transmission to be stored and processed by a control system with a control CPU and a control memory, the information being a series of values recorded by said sensor by time, stored in the control memory as data sets using machine learning or artificial intelligence for determining common or similar values of recorded parameters in the stored data sets or of values calculated from these parameters according to a predefined logic, for use as reference values indicating the End of Life of the blade.

Abstract: A hand cutter comprising a housing, a blade assembly, an actuator assembly, a gear assembly and a retraction means with the gear assembly connecting the actuator assembly to the blade assembly in such a manner that a movement of said actuator slide is transmitted to said blade assembly via said gear assembly with a gear ratio of said gear assembly such that moving said actuator slide moves said blade assembly by a larger distance.

Abstract: A scraper hand tool with a retractable scraper blade, allowing the scraper blade to be moved in and out of a protected position, by including springs, which provide the force required for automatically moving the scraper blade from the extended to the retracted position.

Abstract: A hand cutter with a retractable blade guard providing an unimpaired view of the blade, when it is placed on the object. The blade guard is unlocked and retracted by a trigger mechanism, which is activated by closing the hand around the cutter handle. The blade guard remains in the retracted position until the trigger is released or a relocking mechanism is activated by putting the blade to use by cutting the object.

Abstract: A hand cutter with a blade guard providing the highest possible protection from accidental cutting. The blade guard can be effortlessly activated from the locked position by a trigger, which is achieved by closing the hand around the cutter handle. The released blade guard remains in the released state until the blade has been put to use by cutting the object, when the blade guard release is removed so that the blade guard is automatically relocked as soon as the blade guard returns to the initial protected position.