English pronunciation: Ett'-ah-lon
Indicating micrometers are high precision tools used for inspection of parts. The micrometer is always mounted on a stand so that both hands are free to insert, inspect, and remove the machined parts.
Manufactured in French-speaking Switzerland, Etalon dial micrometers are indisputably the best quality micrometers. They can last a lifetime. Ask anyone who's ever owned one and you'll get nothing but raves.
The indicating micrometer (aka dial micrometer and super mike) features a movable anvil (on the left, below) which is retracted by pushing the button on the far left. The spindle on the right is operated like any micrometer. When you use it to set the required dimension, and lock it in place, you will be able to make parts comparisons using the dial (.0001" or .00005" and 0.002 mm or 0.001 mm). The hand (needle) will show deviations. On the .00005" dial, there are graduations to .001" in either direction. The anvil diameter is 6.5 mm.
Etalon 0-1" range shown above.
These models have an improved spindle locking device which won't wear out like the old ones. Replaceable red and blue tolerance markers are adjustable and the dial can be rotated for fine adjustments. A built-in adjustable part support (also shown above) allows you to keep small parts at the right height, or it can be removed if it's in the way. This part support is not available with the pin-anvil model.
The spindle is designed to turn hard compared to regular micrometers. This is because the spindle is normally preset and locked into place.
The pin anvil micrometer has both anvil diameters reduced to 2 mm as shown in the drawing above.
This is quite an investment, so you'll be happy to know that spare parts are available online and with factory training and over 50 years of experience we'll be able to repair your micrometer if anything goes wrong.
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0-.800" pin anvil
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0-20 mm pin anvil
You may place an online order by selecting any linked order number above.
Items which are not in stock may take from 3-6 weeks for delivery.
Etalon 1-2" model 072109843 shown above (gage block sold separately. See page 164)
Specifications for series 225 indicating micrometer
For Series 225 indicating micrometers (all models):
- Anvil diameter 6,5 mm
- Anvil diameter 2,0 mm for the pin anvil style
- Repeatability error of the dial indicator: half of one graduation.
- Maximum thread error: .00008"
- Maximum dial indicator error: .00004"
- Measuring surfaces flatness: .000012"
- Maximum parallelism fault of measuring surfaces: .00004" (.00006" for 1-2" model)
- Anvil pressure is between 4.5 and 5.5 N but can be adjusted to as little as 0.9 N (use a Correx gage to calibrate anvil pressure)
Your micrometer will come with a manufacturer's declaration that the above mentioned specifications have been met using traceable national standards. No other form of certification is included.
Warranty, repair service and micrometer lapping
The manufacturer's warranty is 12 months from the date of shipment, covering parts and labor for any manufacturing defects. Original documentation is required in case of warranty claims.
A word of warning: do not modify the micrometer body in any way. Don't grind it so that it'll fit into a tight space. Any tampering with the body will surely ruin the accuracy forever.
Long Island Indicator Service is authorized to perform warranty and other repairs on Etalon micrometers. With more than 40 years of experience, factory training, and a full complement of spare parts, Long Island Indicator Service is highly qualified to perform quality repairs as well as in-house micrometer lapping. For more information on micrometers in general and what can go wrong with them, please refer to page 29.
Recommendations from the manufacturer
The manufacturer writes,
"Every micrometer is supplied ready for use and inspected. However, since they might get out of adjustment during transportation, we [Etalon] advise to check the zero-setting before use. We also firmly advise our customers not to dismantle the instruments needlessly. They need only be cleaned using pure benzene* and periodically lubricated with a few drops of high quality purified oil. Check the zero-setting as often as necessary. The guarantee does not cover new measuring instruments dismantled by customers."
See also: Calibration and zero-setting instructions.
*Please note, the use of some solvents will destroy the plastic red and blue markers as well as the plastic cover.
How to use your indicating micrometer
Place your Etalon indicating micrometer in a micrometer stand so that you have both hands free to work.
When you close the spindle on the micrometer to read zero on the barrel (the zero on the barrel coincides with the zero on the sleeve), then the dial hand ought to be near zero on the indicator dial.
Set the micrometer spindle to your ideal measurement. Let's say you are making pieces that must be .5000" in diameter: set the micrometer spindle to .5000"
Now tighten the spindle using the lever (don't force the lever or attempt to over-tighten), so that the spindle no longer moves.
Retract the movable anvil (the one above the dial) by pressing the button on the left side of the micrometer. The movable anvil will open slightly so that the gap is a little larger than .5000" This will allow you to insert a piece to be measured.
To verify the accuracy of your setting, insert a master (such as a gage block) between the anvils, resting on the support (which you have adjusted to fit your piece). Release the button, and the anvil will close on the gage block. The hand on the dial should read somewhere near zero. Make sure the block is firmly seated (you may have to wiggle it a bit) and then set the dial so that the hand is exactly on zero. Use the setting knob on top of the dial to make this adjustment.
Repeat several times to make sure you always get zero on the dial.
Now insert your piece to be tested. If it's exactly .5000" in diameter, the hand will also point to zero. If the hand is off, then that's the amount of error in your diameter. If the hand is under by 3 graduations, then your diameter is under by that amount, etc. You are in effect making a comparison measurement.
Repeat this procedure with all the pieces to be tested. Every now and then, reinsert the gage block to make sure the settings haven't changed.
Of course, if you don't see any hand movement on the dial, then something's wrong and we'll have to take a look at it. See page 30 for information on how to get your Etalon micrometer repaired.
The new model Etalon micrometers have an improved metal spindle locking device. But the old models had a plastic lock. It used to cost big bucks to get the plastic lock replaced... just to see it wear out again in no time. Several kinds of locks are available. It's important to have the dimensions of the one you need. If you send us your old model micrometer we'll install our own version of a metal lock guaranteed to last. If you'd like to install one yourself, find out how on our Do It Yourself page.
Three very small screws undo the old cover assembly. You'll need a jeweler's screw driver for this. The new cover, which includes the red and blue markers, easily replaces it. The new assembly is expensive (part #109699) but it'll make an Etalon indicating micrometer usable again. Refer to parts list.
.0001" to .00005" conversion
A little know fact is that one Etalon micrometer movement can be removed and another put in its place. Just a couple of screws accomplish this. But, it might be best left to someone with experience. (Movement .0001" is part #109618, Movement .00005" is part #109617) Refer to parts list.
For the professional, or the seriously "do-it-yourself" inclined, we've made parts available for the Etalon indicating micrometer and Etalon standard micrometer. Please remember that fiddling with these gages will nullify any warranty and specialty repair tools may be required.
A less expensive alternative
Mitutoyo (Japan) makes good indicating micrometers which cost from $200 to $300 less. You may want to compare these, shown on page 54.
A bargain-basement ($140) model made in China is available, which might be of use in some circumstances. They have to be treated as throw-aways though, since no spare parts are available for repairs.
Indicating micrometers made in Poland are also available as a cheap substitute ($250-$270). Like the Chinese models, these also have to be treated as throw-aways. Unlike the others, the anvil retracting button is located on the right side of the micrometer body. The indicating dial is considerably smaller. We don't offer these at this time.
Dial splash guard
To protect the red and blue markers and the crystal, it's cheaper to invest in a clear plastic splash guard (part #110978) which fits over the cover assembly. It won't actually keep fluids out of the indicator movement but it will prolong the life of the cover assembly. Three extra long screws are provided. Remove the old screws but don't remove the dial cover. Place the splash guard over the dial cover and use the extra long screws in the same screw holes. You will need a jeweler's screwdriver for this because they're small.
Brown & Sharpe 599-796 Stainless Steel Jewelers Screwdriver Set, With Case, 6-Piece
Etalon micrometer stand
The indicating micrometer needs to be held in a stand because you'll want both hands free for inserting and measuring the pieces.
The micrometer is held securely by its frame. The one locking knob is used to position the micrometer at an angle convenient for you. Your quality inspection lab will want this Cadillac of all micrometer stands made in Switzerland.
Swiss Etalon micrometer stand (72.110123)
Order no. 072110123 ... $160.00 check pricing and stock