html-Catalog Mitutoyo 2017 - 2019

Optical parallels

Series 157 These Optical Parallels allow you to inspect micrometers and other measuring tools. They offer the following benefits: – Using optical interference, they can inspect the measuring faces of micrometers for parallelism and flatness. – Each set consists of 4 sizes designed for testing at each quarter revolution.

Specifications Flatness

0,1 µm 0,2 µm 30 mm

Parallelism Diameter

157-903

Metric No.

Contents Range of micrometer to be checked Sizes of parallels included in set

157 ‑ 101 157 ‑ 102 157 ‑ 103 157 ‑ 104 157 ‑ 105 157 ‑ 106 157 ‑ 107 157 ‑ 108

12 mm 12,12 mm 12,25 mm 12,37 mm 25 mm 25,12 mm 25,25 mm 25,37 mm

0-25 mm

157-903

25-50 mm

157-904

Testing a micrometer for flatness and parallelism of anvil and spindle faces : flatness is indicated by straightness and regular spacing of interference fringes, and parallelism by how many fringes are visible.

101

All products to be sold to commercial customers. Product illustrations are without obligation. Product descriptions, in particular any and all technical specifications, are only binding when explicitly agreed upon. For suggested retail prices, please refer to the separate price list.