Electronic Optical Edge Finder — Shank Ø20 mm, Probe Ø10 mm, Accuracy 0.005 mm Key benefits Fast, reliable edge and position finding: LED and audible alarm trigger instantly on contact with conductive workpieces, so you can set workpiece zeros and locate features quickly without repeated probing. High precision: 0.005 mm repeatability gives consistent reference points for accurate setups. Durable, low-maintenance construction: hardened, ground probe resists wear; spring-loaded design protects the probe from damage caused by overrun. Simple to use and integrate: 20 mm shank fits tool holders or spindles that accept Ø20 mm tooling; compact 10 mm probe accesses tight locations. Primary features Shank diameter: 20 mm — fits standard Ø20 mm toolholders. Probe diameter: 10 mm — narrow tip for precise edge detection. Accuracy: 0.005 mm — suitable for precision setup and repeatable positioning. Visual and audible indication: bright LED and clear tone activate the moment the probe contacts a conductive workpiece; alarm is louder and brighter for easy recognition in noisy shop environments. Hardened and ground probe: provides wear resistance and consistent contact surface; no need to rotate the probe during measurement. Spring-loaded mechanism: absorbs overrun to prevent accidental damage to the probe and workpiece. How it solves common setup problems Eliminates guesswork when finding edges or centers, reducing setup time and scrap. Minimizes measurement variability caused by worn or improperly oriented probes because rotation is not required for measurement. Protects the probe from impact damage with a built-in spring, reducing downtime and replacement costs. Use scenarios 1) Milling machine setup: Quickly find the X and Y edges of a raw workpiece to establish machine zero before machining an accurate part program. 2) Jig drill alignment: Locate hole centers on jigs or fixtures with reliable, repeatable contact signals to ensure correct drill placement. 3) Small-batch production or prototyping: Speed up fixture changes and reduce setup errors when switching parts between jobs that require frequent re-zeroing. Compatibility and practical notes Designed for conductive workpieces; probe indication requires electrical contact with the workpiece surface. Fits any machine or holder accepting a 20 mm shank; check your toolholder or spindle specifications before use. Routine inspection of the probe face recommended to maintain the stated accuracy. What you get A hardened, ground 10 mm probe mounted on a 20 mm shank with spring-loaded protection, bright LED, and audible alarm, calibrated to 0.005 mm accuracy for fast, repeatable edge finding on conductive parts.