“The Mercy.” Elara traced this one with her thumb. If the bit bound up in the concrete, the clutch would snap and disconnect the motor, saving the user’s wrist from snapping. “A tool that hurts its master is a useless tool,” Leon wrote. She recalled the one time he came home with a bruised forearm. He’d disabled the clutch on an old model. “Felt like I had to prove something,” he mumbled. He never did it again.
At the bottom of the diagram, in faded pencil, was a note: “If the drill stops, don’t blame the tool. Look at the diagram. Some part of you has stopped working, too.” hilti hammer drill parts diagram
Brrrrrr-TAP-TAP-TAP.