Certain sellers have appeared who are stealing my item-listing copy and style word for word. The Federal I got from you is more accurate than the Interapid I have. You calibrating them makes all the difference. Mind, it further confirms all you state in your descriptions as true.This indicator is absolutely gorgeous. Thank you for switching out the plate for the lug.
But what if its a top-quality brand, made in the U. That's all well and good, but it doesnt mean a thing in terms of indicator performance.
Though it might be indicating with sufficient accuracy and precision, it just as likely isnt, and either way you wont knowand that significant uncertainty defeats the purpose of using precision gages. It was so far out of calibration as to be useless, and yet most sellers are listing untested indicators just like this and calling them perfect. This doesnt present a problem if youre unconcerned about the your measurement results and you have a penchant for significant uncertaintyor else are prepared to undertake the calibration yourself. But if you need to rely on the accuracy and precision of measurementsthe foundation of the whole enterprisethen you must have confidence in them.
But what if its an Interapid? All the indicators I sell are functionally new.I can make and guarantee this claim because every indicator I sell undergoes an extremely thorough and meticulous servicing, including. Cleaning of all parts in an ultrasonic cleaner and/or by hand if necessary.
Inspection of parts, for wear and damage, and of the indicator as a whole, for smooth and correct function. Refurbishing and replacement of worn or problematic parts when necessary.
Precision tuning and calibration, so that every indicator is verified and guaranteed to be working perfectly and indicating to the very same standard of accuracy and precision as. New indicator, and in many cases. 0005 drop indicatorsto a standard twice as accurate and precise as new.
I remain in some doubt as to whether most buyers recognize the benefits this process has on indicator function. Completely overhauling a gage confers manifold benefits, and it requires a major investment of time and labor.Aside from the obvious benefit of putting the indicator in the best possible condition (both cosmetic and functional) and ensuring that it performs perfectly now , it also ensures that the indicator will continue to function perfectly for as long as possible into the future. Lifting the lid on an indicator and looking inside allows the technician (me) to discover any developing or potential problems and to nip them in the bud. In this way, too, these are far more like new indicators than used ones. And there is considerable value in the security and the peace of mind that provides. Gage was tested on a NIST-traceably calibrated gage tester that is graduated in 10 millionths.
This provides the precision necessary for testing even tenths gages. Nowhere else will you find this kind of guaranteed quality at such a value.
001 indicators this means accuracy of ±. 002, respectively, and repeatability and hysteresis within. In contrast , I guarantee the gage to twice that accuracy and precision: within ±. 0005 for the first 2-1/2 revs and ±.
001 for the rest of the measuring range; and repeatability and hysteresis within ±. While a new dial indicator.Be this accurate, it may not be, you wont know if it is or not, and it certainly isnt. A long-form report (which records the accuracy and precision of the gage and thus creates a map of its performance) is not available with a new gage, even when you pay more for a certificate, but is available here at additional cost. I try to keep a variety of indicators listed for sale at all times, but it can be difficult and I dont always manage to keep up. If you dont see many indicators listed for sale, dont think theyre all gone. I have a large inventory with a variety of brands including Starrett, Mitutoyo, Federal/Mahr Federal, Brown & Sharpe Bestest, Interapid, Compac, and more, in a wide range of types, graduations, measuring ranges, colors, prices, etc. Dont hesitate to contact me if youre looking for something in particular or to ask for recommendations. If you have any questions about this indicator, other indicators, or indicators in general, dont hesitate to contact me.
You can also rely on me for any repair, replacement, and calibrations needs. Contact me with calibration and repair inquiries. If youre interested in this fine Starrett indicator, consider looking at the other fine American-made Federal indicators for sale. If you are interested and there aren't any for sale, just inquire: I have plenty.For some reason Federals get less respect here than Starretts. Just like Starrett, Federal has a long history of making high-quality gages in America, which continues to this day. Dont underestimate themthey are, in every way, the equal (and in some cases the superior) of the Starretts. I've seen and calibrated enough of them to know. Try one and see for yourself. 25-631 dial indicator with jeweled bearings, made in USA. This indicator Is interesting because it features the unusually large 01 range in a. New condition; better-than-new performance, because this indicator has been precision calibrated to a standard twice as accurate and precise as a new one. That guarantee actually applies to all the indicators I sell, even used ones. The only difference is that mine doesnt include a boxalthough it does come with a long-form calibration report, which the one from Starrett does not.
The Starrett 25-631 is an AGD Group 2 indicator, meaning, among other things, that it has a 2 dial diameter and 3/8 stem diameter. 0005 with two range counters and is continuous reading to 50 (02550). 050 per rev for a measuring range of 01, which is rather extreme for an indicator graduated. Typically this much range isnt required, but if you have a special application or a preferred way of working or want just a single indicator that can do a bit of everything, it is available.A very fine American-made Starrett indicator guaranteed to work perfectly and to indicate to a standard twice as accurate and precise as new, at a signifcant discount. If you can find the same thing for less, feel free to make an offer.
In case you were curious: the AGD (American Gage Design) protocol, developed for the purpose of standardization among gages, specifies many of a dial-indicator's characteristics, including the dial diameter Group 1 is approx. 1-1/2; Group 2 is 2; and so on, up to Group 4, a stem diameter of 3/8; and yellow dials for metric indicators, among other things. Non-AGD indicators (DIN- or JIS-conforming and typically meant for the international market) usually have 8mm stems and outer dimensions that generally correspond with AGD indicatorsthough you can find special-purpose indicators that otherwise conform to AGD but have a variety of stem diameters.I have some Starrett AGD2 indicators with 7mm stems, if anyone is looking for this rather unusual size. Mounting via the stem is the most common, practical method, so stem diameter is important. Note that you can use an easily acquired sleeve/bushing adapter to mount the smaller 8mm stem in a 3/8 holder, though not vice versa. Dial: continuous-reading to 50; 02550. An important note to buyers: cold temperatures can and will adversely affect the functioning of precision gages, including dial indicators.
To be safe, please allow your indicator(s) to acclimatize fully to room/shop temperature before actuating plunger/lever. If you have any questions at all, dont hesitate to contact me.Ive tried to take photos showing the item as a whole and in detail from every angle; but if youd like to see something in better detail or if Ive left out something that you want to see, just let me know. Are included only if shown and/or described in listing. Please inform me if you do. The item "CALIBRATED Starrett 25-631 Jeweled Dial Indicator 0005 01 AGD2 Dead Nutz $185" is in sale since Saturday, June 22, 2019. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Inspection & Measurement\Indicators". The seller is "hugomac13" and is located in Baltimore, Maryland. This item can be shipped worldwide.