The Micro-Metrics Company has been in business since 1961, manufacturing precision quality-inspection devices. Located in Cumming, Georgia, U.S.A., the company manufactures five major instruments and their accessories.
Micro-Metrics is shipping OG204 Tooke Gauges
Currently, all products are immediately available for shipment except the metal-bodied Tooke gauges, the OG202, which we hope to have back in production soon.
The following products and services continue to be available:
- OG204 (plastic-bodied) paint inspection gauges
- 1×, 2×, 10×, and 5× cutting tips
- H-501 pencil hardness gauges
- MG402 Microgroover
- S-701/S-702 film thickness standards
- most calibration services
- some (but not all) repairs.
Now available: the CTH01 Cutting Tip Holder!
Micro-Metrics is delighted to announce the release of the new version of the Cutting Tip Holder that many customers have asked about. These single-tip holders are now available for purchase.
Product List
OG202 and OG204
Tooke Paint Inspection Gauge
A precision tool for inspection and thickness measurement (in accordance with ASTM D4138) of single or multiple coats on any substrate, and for microscopic observation and measurement of substrate and film defects. The Tooke Paint Inspection Gauge uses an illuminated 50-power microscope with measuring reticle marked in English (mils) or metric (millimeters) units, and mounts tungsten carbide cutting tips for precise incision of the work surface. Standard cutting tips are 1×, 2×, and 10×. An optional 5× tip is available. Also, a gage can be ordered with three tips of the same size. The gages are are available in either machined aluminum (OG202) or in molded polycarbonate plastic (OG204).
Direct measurement of total coating thickness and thickness of individual coats of paint is a unique capability of the Tooke Paint Inspection Gauge. Thus, in addition to routine use, it often serves as a “referee” instrument to calibrate indirect or non-destructive thickness measuring instruments. Other uses include assessment of substrate conditions and coating adhesion, and observation of microscopic cracking, tendency for brittleness, cratering, or other microscopic film symptoms.
OG202 Tooke Paint Inspection Gauge
The original Tooke Gauge is made of machined aluminum.
OG204 Tooke Paint Inspection Gauge
This less-expensive gage has the same dimensions as the OG202,
but made of molded polycarbonate plastic.
CTH01 Cutting Tip Holder
The Cutting Tip Holder, at a little under two inches long, allows easy use of a cutting tip without having to manipulate the Tooke Gauge to make the incision and then manipulate it again to view the incision through the microscope. Make multiple incisions with your most-used tip without having to return the gauge to viewing position multiple times. A tip storage compartment holds two additional tips.
MG402 Microgroover
The Microgroover is a high-speed rotary tool for creating the small, almost microscopic, incisions required for measurements with the Tooke Paint Inspection Gauge. This technique eliminates the deformations of coating and substrate which may occur when conventional gage cutting tips are used. Hard, brittle, tough, fibrous, tender, or elastomeric materials exhibit clean, non-tearing, controlled disintegration under the rotary cutter. The high-speed cutter “erodes” away surface material in a precise pattern, leaving adjacent and underlying areas undisturbed.
H-501 Pencil Hardness Gauge
Permanently holds all pencil leads in the configuration required to perform the ASTM D3363 Pencil Hardness Test, which is the simplest and most generally accepted paint film hardness test.
S-701 and S-702 Film Thickness Standards
Supplied in thickness ranges of 1–10 mils (S-701) or 10–60 mils (S-702) in non-certified grades. Packaged in sets of six pieces in a plastic folder. Essential for performance verification of indirect (magnetic or eddy current) type gages and micrometers, and for precision comparison with Paint Inspection Gauge results.
The Micro-Metrics Company very much misses
20+-year Company President and Owner
Michael Ray Laurence
(1 Oct 1950 – 10 Jul 2011)
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