Review on TZ-8108 Adjustable Roller Lever Arm Arduino Limit Switch NC/NO CNC Mill Router SPDT Momentary Limit Switch For CNC Mill Plasma by David Garnic

The spot where the switch changes state does not waiver. Cycles dependably every time. Terminals are well-built and terminal screws do not strip out easily. You can really crank down on the wires. Mounting bolt holes are the same. Common size thread and pitch. Bolt holes do not strip out easily. I'm using mine to control a linear actuator on my mower chute door. We will see how they handle the elements. The gasket is a little awkward. I'd definitely buy them again.