$36.95

Turn or Shape Grind Mill with Periphery Block Surface Roughness Comparator 63 Ra
[PN: M 163]

Turn or Shape Grind Mill with Periphery Block Surface Roughness Comparator 63 Ra

Visual Tactile Turn or Shape Grind Mill with Periphery Block Surface Roughness Comparator 63 Ra

Surface Roughness Comparator, turn or shape Grind Precision Reference Specimen (1-3/8" x 1-7/8") with replicated surface roughness 63 micro-inches in height. Each specimen is identified with its arithmetic average roughness height rating.

Functional Usage:

Place the block alongside the workpiece and draw the tip of the fingernail across the surface at right angles to the tool mark. The feel of the fingernail contact must be the same if the finishes are identical.

This MICROFINISH COMPARATOR Surface Roughness Scale is produced with the highest engineering skill and precision workmanship.

IMAGE - 125 RA Shown

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Turn or Shape Grind Block Surface Roughness Comparator 32 Ra
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