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Tool Talk Discussion Forum

Micrometer and Dial Indicator

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farmermatt

08-17-2005 10:38:14




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Does craftsman sell good precision tools?? Im looking for a good external micrometer and a dial indicator. Not for every day machinist use but accuracy is still important for the final drive im rebuilding now and also future tractor tranny and rear end work. What would you guys recommend? Need to make the purchase in the next day or two.




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Bernoulli

08-18-2005 17:36:16




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 10:38:14  
The gentleman who repairs precision instruments here in Portland says that Federal makes the "Cadillac" of dial indicators. I am awaiting three bought on Ebay for less than $20 for the lot including shipping. Two of them measure to .0001". You will want to make sure that the indicators have jeweled movements. Although there is some risk on Ebay, I've bought mikes (Mitotoyu digital below $30), vernier calipers (Mitotoyu digital and dial under $30 each) and several dial indicators(Brown & Sharpe, Starrett, Federal and Mitotoyu) and am satisfied.

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John Garner

08-17-2005 22:42:19




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 Great, Good, and Value Measuring Tools in reply to farmermatt, 08-17-2005 10:38:14  
farmermatt --

What's you budget like?

If you wallet is fat, you don't mind it getting a lot skinnier, and you don't want to have anyone kid you about your tools, ever . . . buy Swiss-made instruments, either Tesa or Etalon micrometers and Tesa or Interrapid dial indicators.

As the newspaper restaurant reviews would put it, $$$$.

Starrett micrometers and Brown & Sharpe Best-Test indicators will save you a lot of cash for only a small step down in quality (or prestige). A worthy alternative to the Starrett micrometer is the US-made Scherr-Tumico; the S-T prices are usually a bit below Starrett's.

Mitutoyo is another small step down in both price and prestige, but still "professional machinist" quality. The Mitutoyo dial indicators are about as economical as I can comfortably suggest, but there are other micrometers worth considering.

Several of the mail-order mill supply houses (MSC, Travers Tool, J & L Industrial, and so forth) sell a line of Polish micrometers that are VERY nice for the price. As I recall, the brand name on the Polish micrometers is VIS.

There's also a high-quality line of Chinese micrometers that should meet your needs. I recently bought a 0 - 25 millimeter micrometer from Enco for US$ 18 or thereabouts that turned out to be a lot higher quality than I expected. It looks much like a Mitutoyo, not like the generic Chinese micrometers, and I wouldn't be surprised if the big-wigs in Tokyo are staying awake at night worrying about what this line of much-better-than-generic Chinese micrometers will do to their sales.

Finally, at the bottom of the price barrel are the generic Chinese micrometers. From what I've seen, very few of them come out of the box in usable condition, being grease-packed and poorly adjusted. But if your wallet is undernourished and you know how to clean and adjust micrometers you'll find the generic Chinese micrometers usually have "good bones" and, while they'll never be pretty, can be coaxed to reliability.

Between work and home, I use Etalon, Starrett, Brown & Sharpe (both US-made and Swiss-made versions), Lufkin, Scherr-Tumico, Mitutoyo, NSK, Moore & Wright, Polish, the higher-quality Chinese, and generic Chinese micrometers. Sure, I like some of them better than others, but even the generic Chinese -- once properly cleaned and adjusted -- can be relied on to measure within a fraction of a thousandth of an inch, day in and day out.

Ok, next subject. You'll need to hold your dial indicator somehow. If you decide to do that job with a magnetic base, I'll recommend the Israeli-made Noga "single-knob" (sometimes called "hydraulic") mag base that sells for about US$ 80 from any of the mail-order suppliers. The Noga bases work wonderfully well.

John

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farmermatt

08-18-2005 12:39:52




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 Re: Great, Good, and Value Measuring Tools in reply to John Garner, 08-17-2005 22:42:19  
I guess to answer how fat the wallet is; $20 would be nice, $50 would be more realistic, and for $100 it better be damn good!!!!



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farmermatt

08-18-2005 12:37:30




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 Re: Great, Good, and Value Measuring Tools in reply to John Garner, 08-17-2005 22:42:19  
The budget is always tight!!! But accuracy is a priority. Ive never in my 26 yrs used a dial indicator other than in a college classroom. On the farm, precision isnt always as important but I find myself tackling bigger wrench turning jobs than I have tools for. This final drive is an example. So I need to invest in some of these thing but hate to break the bank on a tool that I may not use again for years. I have an old mic that will work for this job but that dial indicator is hard to come by. Im realizing the stand will be even more important than the actual dial. Mag are the best??? It has to have quite a bit of adjustment and several different angles. Oh well, I guess the corn isnt ready to shell yet, it might take awhile tracking this one down.

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Bill WI

08-19-2005 09:30:50




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 Re: Great, Good, and Value Measuring Tools in reply to farmermatt, 08-18-2005 12:37:30  
I'm sure a dial indicator .001 will work fine for you as most have a mark between the thouands too. If you use a .0001 test indicator with the small ball you are going to find that on the finish of the surface you are working on it will be bouncing so that you'll be estimating between anyway. Also the holder with the segmented arm that I used wasn't accurate enough for me. A magnetic base with a plain shaft and a smaller arm and swivel clamp will get in many places if you work at it and I feel much more accurate.I bought a Mitoyou (?) carbide faced mic 25 yrs ago when it was a like a Chinese mic (Jap). All the guys laughed and called it a "polish" mic.I laughed when I retired 5 yrs ago and still used it off and on. I left a windy engineer use it once and when I got it back it was cranked closed. When I tried it it was off, before recalabrating I backed it off and set it aside a day and it was ok. They aren't C - clamps !!!. Don't let others use precision tools UNLESS you know FOR SURE they know how to use them. I don't claim to be an expert, but, have been round the block.

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Slowpoke

08-17-2005 17:18:55




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 10:38:14  
I'm not sure if all mikes have a vernier scale that allows reading to 10,000ths, but get one that does if you need measurements that close. The dial indicators come in various ranges. They may have a maximum range of 2", 1", .500", .250", .125", .100, .075", .025, etc. Usually small ranges less than .025 are called dial test indicators. Then you have to decide if you want to read 0-X-0 or 0-X. A catalog I have lists an electronic digital indicator for under $67 (1998) It has inch/metric, 0-.4" range, data hold, and .0005 resolution. Get your self a good industrial supply catalog and you can be even more confused!

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farmermatt

08-17-2005 19:29:30




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 Re: Micrometer and Dial Indicator in reply to Slowpoke, 08-17-2005 17:18:55  
Guess I need a dial test indicator then, gotta get down to .001 for the final drive project im workin on now.



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Slowpoke

08-18-2005 11:44:20




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 19:29:30  
I think I may have confused you. The range is the maximum distance the indicator will go. Suppose you have a 1" dial indicator. If you press on the stem slightly, you can get the needle to rotate one revolution. The dial is divided into 100 parts, or .001" between each mark. So one rev will equal .100" or 1/10 inch. One more rev and you are up to .200". A maximum of ten revs will bring you to 1". There is usually a second smaller dial that counts the revs for you. So if the "little hand" is past the 3 and the "big hand" points to 17, the reading is .317. If the big hand points to 18, the reading is .318.
There you have the .001 difference. Probably the 1" dial indicator will work for you application and it's the most common, so the cost will be reasonable. Hope this helps.

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Easy

08-17-2005 21:49:45




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 19:29:30  
If you need to hold T.I.R. down to .001, you should get a tenths indicator. There are some good brands out there. But to be used accurately, you need a good mag base or a very solid clamp, which can be purchased as an accessory. This can run into some money, but if taken care of will last a lifetime. There are some good electronic indicators out there but I have little experenice with them. Good luck, Easy.

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Van in AR

08-17-2005 20:23:22




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 19:29:30  
No just a dial indicator will do, they will also go down that low. Get a good magnetic base and you will be set.
Van



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Midwest redneck

08-17-2005 16:57:38




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 10:38:14  
Buy Starrett or Mitutoyo, the best there is, Also Interapid is a good dial indicator, I have had mine for years. (about $150)



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petetx

08-17-2005 14:24:42




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 10:38:14  
when you buy craftsman buy the top grade they sell more than one grade there top lines are good quality
for the price



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Jerry L /AZ

08-17-2005 13:53:20




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 10:38:14  
you can get some good mikes and indicators off of e-bay I myself would not buy sears/craftsman they are in my opinion the bottom of the list you can do alot better for the same money just my nickle Jer



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Bob

08-17-2005 13:03:03




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 10:38:14  
ENCO has tools that are very adequate for that kind of use for reasonable prices.



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kraigWY

08-17-2005 12:53:11




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 Re: Micrometer and Dial Indicator in reply to farmermatt, 08-17-2005 10:38:14  
Yes they do, I have a set of both my father gave me in 1969 when I got out of the army, he used them for years and I still use them. I have some newer craftsmen ones too, they work just as good, get the metal and not the plactic ones.



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