PAGE 174 — B&S INTRIMIK TRI-O-BOR
"Digital Reading" does not refer to anything electronic. The barrel of this direct reading hole micrometer has small numerals which display the correct reading to .001" (0.01 mm on metric models), much like the early "digital" alarm clocks of the 70's. An additional division on the display will allow you to read down to .0002" It's totally mechanical and easy.
This Brown & Sharpe precision Intrimik is made in Switzerland by Tesa. You can expect durability, reliability and accuracy from this manufacturer. This is the type of gage you will want to invest in, if you're planning on being in the business for a while. Nothing better is available.
Intrimiks are available singly or in sets which cover larger spans. Each Intrimik will require a setting ring (see page 163) as shown in the photo. These rings are sold separately but they are included in complete sets. Complete sets also include some tools: a screw driver, two spanner wrenches, a heat insulating rubber sleeve. The single units come in cheesy foam boxes, but the complete sets have fancy molded plastic suitcases. They're expensive; you'll want to store them carefully.
For easy ISO integration, an ID number, inspection report and declaration of conformity are included.
Digital (non-electronic) counters.
The three replaceable tungsten carbide measuring arms are flush with the bottom of the gage so that not only through holes but also blind holes can be measured.
|Range||Graduations||Measuring Depth||Max Error||Model No.||Discontinued|
|.6 – .8"||.0002"||5.2"||.00012"||599-238-8-1||—|
|.8 – 1.0"||.0002"||5.2"||.00012"||599-238-10-1||—|
|1.0 – 1.2"||.0002"||5.2"||.00012"||599-238-12-1||—|
|1.2 – 1.6"||.0002"||5.4"||.00012"||599-238-16-1||—|
|1.6 – 2.0"||.0002"||5.4"||.00012"||599-238-20-1||—|
Measuring depth is limited to about 5" (see above) depending on the size of the gage, but up to two 5.9 inch extension can be added optionally to any Tri-O-Bor gage from size .6" to 4.8" (the manufacturer recommends not using more than two extensions).
With the Brown & Sharpe Intrimik you can take direct readings, as if it were a micrometer. This is different from dial bore gages which would only be used as comparators.
Insert the Intrimik into the bore to be measured. Turn the ratchet until it engages (clicks), then give it one and one-half more turns, holding the Intrimik lightly in position. The gage will now be properly seated in the bore. Read the indicated value.
5.9" long depth extension
For a discussion of other hole measuring options, take a look at Internal Bore Micrometers on page 25.
Top-of-the-line Model 599-238-16-1 shown above with optional 1.2" setting ring
Caution if buying from Amazon: their product images often do not match the product description. Read carefully!
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