1、STABLE AND HIGH ACCURACY: 3D edge finder probe come with robust sealed housing, possess good structural stability and high accuracy 2、NO NEED TO ROTATE: The spindle does not need to be rotated when measuring centering, and the centering measurement can make the probe rotate 180 degrees, making the measurement more accurate 3、WATERPROOF FUNCTION: Support dustproof and a small amount of dripping and waterproofing, do not support long term dripping and washing 4、CNC POSITIONING AND MEASUREMENT: 3D edge finder probe is widely used in CNC lathes for positioning, measurement, etc., useful and practical 5、CORROSION RESISTANT MATERIAL: Made of excellent aluminum alloy and tungsten steel material, light weight, possess good strength and good corrosion resistance 1 x Probe1 x Needle1 x Storage Box Item Type: 3D Edge Finder ProbeMaterial: Aluminum alloy, tungsten steelProbe Ball Diameter: Approx. 4mm / 0.16inMeasurement Direction: X, Y, Z axesReciprocating Accuracy: ≤ 0.01XY Deflection Range: 0-6°Z Direction Telescopic Range: Approx. 1mm / 0.04inBattery Type: 2 x 3V CR1616 button battery(capacity 50mAh)