Z-Probe to home the Z Axis of your CNC machine before the job or after a tool change during the job.  The Probe comes with a crocodile clamp which is clamped onto the cutting bit.  Then as soon as the bit makes contact with the cutting bit, the new Z position is stored.

Specifications:

Probe thickness: 12.4mm (This value is slightly different for each probe, please measure your probe)

Cable length: 1m