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OMEX Lathe Alignment Test Bar 3MT - Test Mandrel - Alloy Steel EN31 - Precision

  • Based on 90 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
Fulfilled by OmegaInternational

Arrives Jan 14 – Feb 4
Order within 6 hours and 8 minutes
Available payment plans shown during checkout

Size: 3Mt


Features

  • Lathe alignment test bar

Description

Lathe alignment test bar - test mandrel Shank size - mt 3 Re-align the tail- stock on your lathe to eliminate that slight taper when turning over a long distance. Manufactured from en31 alloy steel. Useful for alignment test between centers as well as in morse taper spindles Accuracy within 1 micron. Max.run-out :0.0001". Overall length : 335mm (13-3/16")

Manufacturer: ‎OMEX


Part Number: ‎OMEX_1023


Item Weight: ‎2.57 pounds


Package Dimensions: ‎14.68 x 1.93 x 1.46 inches


Is Discontinued By Manufacturer: ‎No


Size: ‎3Mt


Material: ‎STEEL


Number Of Pieces: ‎1


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: March 1, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jan 14 – Feb 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Well made and very accurate (.0005 TIR)
Size: 3Mt
When I read the reviews for this bar I was skeptical. But the price was right and I thought I would give it a try and if it was as bad as some of the reviews said I would send it back. I am very happy with the purchase although I measure the TIC at .0005 rather than the .0002 that is claimed. This is plenty good for my needs. Remember before you check the accuracy of the bar you have to check the accuracy of your lathe. BTW The headstock of my lathe is an MT3. I had to grind .020-.050 off the end of the bar to have it seat tightly in the headstock. ... show more
Reviewed in the United States on March 30, 2023 by Bob B.

  • Aligns tailstock Perfectly
Size: 3Mt
I purchased this bar for aligning the tailstocks of my two lathes. Bar is completely finished and ground, with centers in each end. One end is (in my case) a #3 Morse taper, the opposite end is straight. You will need a good dial indicator to check the alignment.
Reviewed in the United States on June 27, 2023 by Mousegunr

  • Is Great
Size: 3Mt
Not sure why others have bad reviews, unless they have no way of verifying this bar. Straightness checked on a AA grade surface plate with a Mahr indicator, also diameter checked using a Starrett micrometer, this is very good for the price. The total runout is actually about 0.00017"- 0.0002" after multiple tests. Diameter was well within spec from end to end. It will do fine for my needs. ... show more
Reviewed in the United States on May 8, 2023 by Amazon Customer

  • Straight as it should be
Size: 3Mt
The bar is straight but there was a slight (.002) variation in diameter over the length.
Reviewed in the United States on November 17, 2022 by Clint Sare

  • Pretty good for less than $150.
Size: 5Mt
The bar came from India. I have grown increasingly concerned about all the stuff I am buying from China which is the enemy of free people throughout the world. India is not my enemy and I would be pleased to buy more from them. It was an adventure in itself to watch as the bar was shipped from Deli then to Leipzig then to Brussels then to Cincinnati then to me in Jacksonville in a week and arriving a day before promised. UPS doesn't bring you your stuff before it is promised, that was DHL. The bar itself, very nice surface finish except for a few faint marks on the far end where a chuck bit into the metal early in the process. This I can live with. The bar, a #5MT runs out less than 0.001 on the far end, and an unknown amount of that is the lathe itself. Again pretty good and I can live with it though there is some room for improvement. For the money, you can't beat it. As for my new-found Indian friends who made and sold me this bar, keep up the good work and thanks. ... show more
Reviewed in the United States on August 2, 2020 by T. Allen

  • good quality
Size: 3Mt
I only used it once so far but seems to be good quality
Reviewed in the United States on July 28, 2023 by richard doll

  • It works for what I need it for
Size: 1Mt
This lathe alignment bar worked for what I needed it for. But, I don’t have a lathe. I was using it to align two chucks on a drill press, which isn’t what this product is meant for. But it worked.
Reviewed in the United States on May 31, 2023 by A-Zman

  • Read this on proper use before buying!
Size: 3Mt
I made a new back plate and mounted a 6" chuck to it. Using drill rod, I came up with .003 run out. This bar showed the same and confirmed tail stock was dead on as well. *for those chucking this bar up in their lathes. Not only will you damage the surface, it is not it’s purpose. You either order one with the appropriate taper for your spindle (with chuck off) or your tail stock. Mounted there, you can see your head alignment or your tail stock alignment. You can also mount it between 2 centers. I would challenge you to take a look at the finish of you have chucked it up. I’m quite sure you will see marring which when used properly, it will render that area, unusable. Get center less ground rod if you want to chuck it up to check your self centering chuck. I am bummed overall rating has been lowered by people using this wrong. I have put mine on a granite inspection plate, it is a few tenths at worse case on straightness. (.0003”) ... show more
Reviewed in the United States on April 19, 2020 by Harley Buckskin

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