CNC Z-Axis Tool Setting Touch Plate Probe Mach3 Router Mill.
CNC Router Engraving MACH3 Machine Tool Setting Auto-Check Instrument 35mm Dia.
Cnc Z Axis Router Mill Touch Plate Mach3 Tool Setting Probe New Milling Hot Kit.
Diameter：(Approx.) 35mm
Height：(Approx.) 20mm
Effective surface of the knife: 25mm diameter
Cable length 1.2 m , diameter 0.2 square feet,
Including alligator clips
connect the wire of this tool check insturment to the tool connector of your
Control board of the machine , then the control board's GND connect to the frame
of your router ( the frame of the router and the spindle must have connections)

two ways to connect this item:
if your interface board has the limit switch port or other probe port, you can
connect it to that port
if your interface board does not have that port, your driver board has that port,
you can connect it to the driver board's limit switch port.
then in the Mach 3, you need to setup the probe(Mach3 --- Config---Ports and
Pins---Input signals Probe enabled , the pin number type the one you use) and the
Auto-Tool-Zero.
Package includes: