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04-02-2013, 02:28 AM | #1 |
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Join Date: Mar 2012
Location: Oregon City
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Tool suggestion needed - micrometers
I am looking for suggestions for a dial indicator and cylinder bore micrometer.
Anyone have any suggestions? thanks, Todd |
04-02-2013, 02:38 AM | #2 |
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Re: Tool suggestion needed - micrometers
How often are you going to use it? Maybe rent them.
Eastwood; Dial Type Cylinder Bore Gauge Kit 2-6in Range Item #46281 60.00 Auto Zone has dial indicators and magnetic bases.
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04-02-2013, 03:38 AM | #3 |
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Re: Tool suggestion needed - micrometers
If you aren’t going to check cylinder bores professionally you could get away with a Mitutoyo, Starrett, or Brown and Sharp set of telescoping gauges and then use an appropriately sized Outside Diameter Mic. Be sure to use a piston in the bore to keep the gauge square in the bore in the Z or depth direction. Then all you have to worry about is getting in in the center or largest part of the bore, lock or synch it down and then measure with the Mic.
Professionally you'd want a set of Bore gages and the nicest set I’ve ever used were Brown and Sharp, The UK Co. Lufkin made a nice set also. Any of the major brand travel indicators are good and get you close enough for most jobs whether you are using a magnetic base or a depth bar attachment. My experience is in production defense and aerospace machine shops, not engine shops so experience differs with the environment. Give us more details of what you plan and we could be more specific.
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04-02-2013, 05:52 AM | #4 | |
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Re: Tool suggestion needed - micrometers
Quote:
http://stores.ebay.com/Discount-Machine-Shop?_rdc=1
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04-02-2013, 05:58 AM | #5 |
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Re: Tool suggestion needed - micrometers
FWIW, I got a set of low cost telescoping gauges and found they are worthless. They were made of brass and the barrels indented easily causing them to not move smoothly and want to take certain positions.
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04-02-2013, 09:33 AM | #6 |
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Re: Tool suggestion needed - micrometers
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04-02-2013, 09:57 AM | #7 |
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Re: Tool suggestion needed - micrometers
Stick with a name brand for sure, and in this case I would not recommend an eBay purchase of used tools. Having the micrometer or indicator in hand and checking it is of the utmost importance, but at the same time a novice with precision tools will not know what to look or check for. It just may be better to borrow tools from a fellow hobbiest, or if one has to, pay for a pro to check your components.
Accurately using an inside micrometer is definitely an "acquired trait". |
04-02-2013, 10:31 AM | #8 |
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Re: Tool suggestion needed - micrometers
I've had pretty good luck in buying precision measuring tools on eBay. You do have to know what you are looking for. The ones I have bought are Starrett & Mitutoyo, all great quality. The Mitutoyo even had a current calibration sticker on it.
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04-02-2013, 10:59 AM | #9 |
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Re: Tool suggestion needed - micrometers
I like Starrett.
What sort of measuring are you doing: precision machine work, or just trying to determine whether parts on hand have been machined over/undersize ? If you're doing precision machine work, you want "the best", which would be either brand new Starrett or brand new Browne & Sharpe. If you're just checking old parts, then budget stuff would probably be okay. |
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