Universal Double Indicator Concentricity Checker

~ Diameter capacity is 0.157-0.980" or 4-25 mm. ~ Length capacity is 4". ~ Accuracy is 0.00012"/ 0.003mm. ~ Dimensions are 216 (length) X 114 (width) X 130mm (height). ~ Concentricity Gauge allows you to measure the runout of parts internal and external. ~ Two position wheels made from solid steel. ~ Precision drive wheel has a perfect ratio to push the parts down. ~ Ultra high precision ball bearings provide friction free movement. ~ Directional drive hand wheel pushes the parts into the stop for accurate repeatable readings with equal pressure. ~ Heavy duty base mounted fine adjustable sliding test indicator holder that will accept test indicators with dovetail slot. ~ Adjustable mechanical arm stop holds the arm up for one handed operation. ~ 5 & 10mm diameter master setting pins are included.