Use Ring Gauges as master gauge for Zero (0) adjusment or setting of measuring tools like Holtest, Bore Gauges, Inside Micrometer, Inside Dial Caliper Gauge. Internal measuring tools, Internal Dial Comparator and etc.
Microrep Precision (M) Sdn BhdPrecision Equipments Selangor, Calibration Services Kuala Lumpur (KL), Measuring Instruments Supplier Malaysia ~ Microrep Precision (M) Sdn Bhd