M-116 Master Visual-Tactual Individual Block Conventional Machining Microfinish Comparator

$33.00

Availability:
In Stock
Product Code:
M-116

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Individually Serialized, Calibrated & Certified Microfinish Comparators come with a Certificate of Calibration.

Measuring Conditions are listed with their corresponding values.

The calibrating system was calibrated to Standard Reference Material traceable to the National Institute of Standards and Technology. Calibrations are performed by Holts Precision inc.

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Description

Individual rectangular block (measuring 1 3/8" x 1 7/8"). It is made of corrosion resistant electroformed nickel that is a duplicate of actual conventionally machined surfaces.

This MICROFINISH COMPARATOR Surface Roughness Scale is a product of the engineering skill and precision workmanship of GAR Electroforming Division.

Catalog
Number

Roughness
Average

Machining Process

M 116

16

GRIND


TYPE:
The specimens are electroformed replicas of original edm'ed surfaces.

MATERIAL:
This MICROFINISH COMPARATOR Surface Roughness Scale is made of nickel. It will not corrode.

APPEARANCE:
Each specimen has the surface roughness characteristics of a turned metallic material.

SURFACE ROUGHNESS:
Means the finely spaced surface irregularities produced by the cutting action of the tool edges, the feed of the machine tool and by abrasive grains.

UNIFORMITY AND ACCURACY:
The original masters and the electroformed replica production masters have been checked at evenly distributed intervals. Sufficient measurements were taken to determine a representative average. The rating listed is the average of these readings.

LAY:
This is the term to designate the direction of predominant surface irregularities.

FLAWS:
These are the irregularities which may appear at frequent intervals. They are not typical of a turned surface.

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