CNCTOPBAOS 3D Touch Probe Edge Finder to Find Desktop Center,V5 NPN NO CNC 3D Edge Finder with Tip,Waterproof Anti-roll CNC Probe 6mm Handle Compatible with Mach3,for GRBL CNC Router Machine - Amazon.com
CNC Touch Probe: Amazon.com: Tools & Home Improvement
PGFUN CNC 3D Touch Probe Upgraded XYZ Axis Anti-roll Edge Finder Waterproof 3 Coordinate Measuring Sensor Kit with 6mm Shank & 6.5 Ft Cable, Compatible with Mach3 (Edge Finder-NO) - Amazon.com
High Precision CNC DIGITIZING touch PROBE for machining mill router 3/8" shank | eBay