I mounted two of these magnetic switches in a simple piece of wood to serve as protection for my drill. Its downforce is impressive when the 'switch' is pressed, definitely enough to withstand any torque of a drilling operation. I think the borer will stop before it moves my fence. While using it, I zoom in on the fence's position and then press one of the switches to hold the overall position. Fine-tuning then becomes easy, as the free portion of the fence can be easily adjusted to preciselyβ¦