Mitutoyo has recently changed the model number from 2424S-10 to 2424S-19. These new "made in Japan" indicators are well built, have jeweled, shock-proof movements and replace the ones that were briefly made in USA.
Long range indicators are more susceptible to damage. You can understand that, if the long spindle is bent out of shape even slightly, it won't function any longer. No amount of trying to straighten it will help. Not to worry, repairs are possible but not always economical.
accurate to ±.001" over its entire range
jeweled and shock-proof movement
lug back included
3/8" diameter stem
4-48 contact point
concentric revolution counter
dial reads in both directions
repairable and parts available
made in Japan
Have you heard the announcements made at airport terminals lately? It sounds like a parent scolding their 2-year old... don't do this, don't do that, don't even think about...
Here are some "don'ts" which you ought to consider:
Additional indicator information is available: Some Things to Consider.
There are cheap ones on the market and we would avoid those. Made in China, need we say more? They are frustrating to use. Mitutoyo makes a good magnetic base and it makes sense to use theirs along with a Mitutoyo indicator. Take a look at our page devoted to the magnetic base.
Interapid (Swiss) makes high quality indicator stands which you can use on a surface plate in an inspection room. They are designed for serious work and come with a serious price tag. Take a look at our Interapid page even if only for the fun of it. After all, you would check out a Lamborghini if it were in a show room, wouldn't you?
Use contact point extensions with your dial indicator in order to get a longer reach. These will not increase the amount of travel, but they will extend the reach.
A large selection of different shape contact points can be installed. We also have points with non-scratch nylon surfaces. Take a look at our contact points page.
How to calibrate dial indicators? What kind of contact point to use? How to clean? Is there a better model? These and scores of other topics are covered on this web site and can be located in our ABC index.
Avoid getting ripped off by imitation Mitutoyo gages. If you buy from Amazon, verify that it "ships from and [is] sold by Amazon.com" or buy your gages through an authorized Mitutoyo dealer, such as Long Island Indicator Service.
Disclosure: some of the links on this website may direct you to Amazon. Any purchases you make from those links will result in a commission for us. That commission helps to pay for the construction and upkeep of this web site. We are grateful for any purchases you make through those links.