The best thing about investing in these Swiss bore micrometers is the fact that repair parts and repair service are available. With factory training and over 50 years of experience we are fully qualified to repair any damage, to refurbish and to maintain your expensive investment. Unlike the cheap Asian imports, these gages have been in use for decades and you can confidently expect them to be useable for many more. Manufactured in French-speaking Switzerland, Etalon ingages (also called Intalometer) are indisputably the best quality internal bore measuring micrometers. These will make direct readings right to the end of a blind bore (the bottom of the hole). Three tungsten carbide feelers extend from the end of the larger gages when the thimble is turned, and readings are taken from the vernier, just like a micrometer. Very small bores under .402" only have two hardened steel feelers, for 2 point measurement. Because of the mechanics involved, the ranges are quite narrow for each gage. You can buy the ingage model which will measure exactly the bore you are testing, or you can buy these in a full set so that you will have a large measuring range. Each ingage has to be calibrated to a setting ring, so you'll need one or more of those as well. Gage heads are not interchangeable. That means you won't be able to remove the spindle of one gage and insert it onto another measuring head. Each unit must stay intact. A nice feature of the Etalon ingage is that several depth extensions can be added which allows you to measure deeper bores. No other tool allows you to measure small diameter bores at any depth beyond a few inches. For easy ISO compliance, each gage has an ID number and comes with an inspection report and declaration of conformity. Full sets: inch reading - very small bore - 0.188" - 0.402" range
- Graduations: .0001"
- Measuring arms: hardened steel
- Maximum permissible error: 2 µm (~.00008")
- Repeatability: 3 µm (~.00012")
- contains 4 measuring heads
- one 4" depth extension (read information on depth extensions below)
- 4 different setting rings
- serial number, inspection report with declaration of conformity
- storage case
- Made in Switzerland
- model 78.110600 ... inquire
Full sets: inch reading - small bore - 0.396" - 0.804" range
- Graduations: .0001"
- Measuring arms: hardened steel
- Maximum permissible error: 2 µm (~.00008")
- Repeatability: 3 µm (~.00012")
- contains 4 measuring heads
- one 6" depth extension
- 2 different setting rings
- serial number, inspection report with declaration of conformity
- storage case
- Made in Switzerland
- model 78.110602 ... inquire
Full sets: inch reading - mid bore - 0.794" - 1.604" range
- Graduations: .0001"
- Measuring arms: hardened steel
- Maximum permissible error: 2 µm (~.00008")
- Repeatability: 3 µm (~.00012")
- contains 4 measuring heads
- one 6" depth extension
- 2 different setting rings (1.000" and 1.400")
- serial number, inspection report with declaration of conformity
- storage case
- Made in Switzerland
- model 78.110604 ... inquire
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