The Insize 2427-11 Split Type Dial Bore Gauge For Blind Holes, .402-453" Is Designed For Precision Measurement, Inspection, And Quality Control Applications. Split Type Contact Points. Accuracy (Without Indicator): 3Um (Measuring Range 1.5~10Mm), 4Um (Measuring Range 10~20.6Mm). Repeatability (Without Indicator): 1Um. Optional Accessory: Electronic/Dial Indicators Or Dial Comparator. Suitable For Shop Floor Inspection, Cnc Machining Support, Receiving Inspection, And General Industrial Measurement Work.

• Split type contact points
• Accuracy (without indicator): 3um (measuring range 1.5~10mm), 4um (measuring range 10~20.6mm)
• Repeatability (without indicator): 1um
• Optional accessory: electronic/dial indicators or dial comparator