These Vermont Master Setting Discs are used to calibrate measuring equipment like a Micrometer or Snap Gage. Designed to satisfy traceability requirements of your quality control system, these Master Setting Discs are a must for your calibration lab and inspection areas. These Vermont Master Setting Discs are available in 3 tolerance classes: XX, X and Y. Each Master Setting Disc includes a Certificate of Accuracy. Features include... XX Class Bilateral Tolerance (+/-) NIST Traceable Tool Steel: Rc (Cold Stabilized) 4 Microinch Finish or Better Round with 1/2 of tolerance Complete with End Grips Marked with Size and Direction of Tolerance (over 1.5100") Please select Size Range and Style from Pull Down List After order is placed, we will email you to get specific sizes. Class Tolerance Chart by size... Sizes XX X Y .010" - .825" .000020" .000040" .000070" .826" - 1.510" .000030" .000060" .000090" 1.511" - 2.510" .000040" .000080" .00012" 2.511" - 4.510" .000050" .0001" .00015" 4.511" - 6.510" .000065" .00013" .00019" 6.511" - 9.010" .000080" .00016" .00024" 9.010" - 12.010" .0001" .0002" .0003" Estimated Lead Time is 12 weeks ARO.
