Measuring Rods
for caliper and micrometer calibration The rods shown below are made in USA (except for the 1" rod), and are designed for calibrating large micrometers and calipers of all sizes. It eliminates the need to wring many gage blocks together, a tricky and risky undertaking. 
This photo shows a 4" measuring rod being used to calibrate a dial caliper. The manufacturing accuracy shown below assures you that these standards are perfectly suitable for any .001" measuring micrometer or dial calipers. These rods do not come with calibration certificates. If you need the certs for your records, then be sure to order separately and allow up to 3 weeks for delivery. NIST traceable certificate of calibration ... $39 per rod | 
