Dual-Measure Scope Swap
and Reticle Swap options


Dual-Measure Tooke® Gage features

  • The Dual-Measure scope shows 1 mil per hashmark space above the line and 20µm per hashmark space below the line.
  • The Tooke® Gage measures coating thickness on wood, dry wall, plastic, cement, glass, ceramics, non-ferrous as well as ferrous metals, etc.
  • Assists in measuring brittleness and adhesion of coatings and materials.
  • The provided tips are 1, 2, and 10 cutting tips, installed in the gauge body. An optional 5 cutting tip is available. A set of three same-faced tips or a single operable tip with two “blank” tips (to provide lateral stability) can be ordered. See tip details here:   Measuring: the Geometry of the Tooke® Gage (4 pages) – 887kB. This printable document also includes a measuring demonstration. A separate measuring demonstration will be available soon.
  • Each gauge comes in a rugged plastic carrying case with tip wrench, indelible marker, spare LED bulb, and spare batteries.

Scope Swaps

Replace your (discontinued) “universal” metric-unit scope or your old style green-barrel scope
with the new Dual-Measure scope measuring both U.S. standard units AND metric units.


The Scope Swap puts the new Dual-Measure scope in your current gauge, replacing the discontinued universal scope. The universal scope has hashmarks measuring 50µm; in the new DM reticles the metric line measures 20µm / hash, and the U.S.-standard line measures 1 mil / hash. You can also swap out the old-style green-barrel scopes, but also read the Reticle Swap section below. Depending on the condition of your old-style scope, you may wish to only replace the reticle.

All scopes are validated against NIST-traceable gage blocks before release top customers. If a calibration with certificate is desired, see below.

DM-100
Scope Swap

Replace your universal
(or U.S. standard- or metric-unit) scope
with a Dual-Measure scope.

DM-100-Cal
Scope Swap with Calibration

Replace your universal
(or U.S. standard- or metric-unit) scope with a
calibrated and certified Dual-Measure scope.


Reticle Swaps

It may be possible* to replace the U.S. standard-unit or metric-unit reticle in your old-style,
green-anodized scope with a new Dual-Measure reticle, so you have your old
scope (and gauge) body with the new reticle. Almost always, the reticle swap
works fine, but it᾿s not guaranteed.

This swap cannot be done to a universal scope; the reticle won᾿t fit in the barrel. It only applies to the old-style green-anodized barrel. You᾿d only choose this if you want or need to add a metric-unit scale to your (green-barrel) U.S. standard-unit scope. The Dual-Measure reticle has the same U.S. standard-unit scale (1 mil / hash) but adds a metric scale (20µm / hash). Thus, the D-M metric scale measures much finer (as against the universal᾿s 50µm per hash).

*It is only possible but not guaranteed that the reticle can be swapped into the old-style body. Focusing the new reticle on the NIST-traceable gage blocks depends on occasional / historical manufacturing differences in both scope barrel and gauge body, usually depending on its date of manufacture. Options if the new reticle won't focus in your old-style scope are:

  1. keep your old single-scale reticle, or
  2. replace the entire scope.

Call or email for details.

DM-101
Reticle Swap

Possibly* replace your U.S. standard-unit or metric-unit reticle in your green-anodized older scope with a new Dual-Measure reticle.


See note just above: “* may be possible.

DM-101-Cal
Reticle Swap with Calibration

Possibly* replace your U.S. standard-unit or metric-unit reticle in your green-anodized older scope with the calibrated and certified Dual-Measure reticle.


See note just above: “* may be possible.


Documentation

A (slightly pained) comment (by an overly fastidious, if there is such a thing, technical editor) about spelling:
In the American coatings industry, the word gauge is usually spelled “gage.” Because the Tooke® Gage is – and always
has been – known by this spelling, I have used that spelling in the proper name of the gauge, but not elsewhere.