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Robert Composite Set #130 Surface Roughness Comparator. (25192)


Comparators allow the estimation of surface roughness, by both touch and sight. This set consists of 30 comparison specimens, covering six commonly used and important machining methods: 6 Turned, 6 End-Milled, 6 Horizontally Milled, 6 Ground, 3 Lapped, 3 Reamed / Drilled
A label gives the Ra values of each specimen in both metric and imperial units..The set is mounted in an wallet with an instruction card.

Price is inclusive of postage to mainland U.K.

In stock