Description
Magnetic Shop Shims
Set of 28 Shop Shims with storage case, finally got these in stock again.
Each shim is ground on 6 sides with two magnets on the bottom face, there are 7 different heights and 4 pieces of each height in a set. These shims have countless uses around the shop and also in combination with our squares.
The magnet sizes are carefully chosen so that the taller shims have enough magnetic force to hold them up sideways on a project while carrying some of the smaller shims.
The thinner shims have smaller magnets which reduce the amount of force required to remove them.
The shims are ground on all 6 sides to an accuracy of +/- 0.0009 which is less than 1/1024 of an inch! Think of a 1/32” reading on a machinist rule, now divide it by 32 again to get 1/1024 of an inch.
Shims are hardened to HRC 50.
Just remember, to properly measure these you need to use a micrometer mounted on a stand and with the shim wiped clean. A pair of calipers in the hand with a dirty shim will not get an accurate measurement.



Each set includes:
Height (Fractional) | Height (in) | Length (in) | Width (in) | Pieces in Kit |
3/16"
|
0.1875
|
2.000
|
1.000
|
4
|
1/4"
|
0.250
|
2.000
|
1.000
|
4
|
3/8"
|
0.375
|
2.000
|
1.000
|
4
|
1/2"
|
0.500
|
2.000
|
1.000
|
4
|
3/4"
|
0.750
|
2.000
|
1.000
|
4
|
1"
|
1.000
|
2.000
|
1.000
|
4
|
2"
|
2.000
|
2.000
|
1.000
|
4
|
Tolerance +/- 0.0009 inches
Heat Warning
This product contains rear earth magnets which may permanently demagnetize if their temperature exceeds 18°F (80°C). Avoid prolonged exposure to high heat!
21 Reviews
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Magnetic Shim - Excellent!
I was very surprised about the great quality not only in the shims but how they are presented in the case. Nice touch - Fireball logo on the case.
Now the shims - they are beautiful - so much so that I don't want them to get scratched during use. Way better than I thought they would be. -
shim...
great tool better than I was hoping for
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Always quality...
I’ve bought 2 sets of squares and the magnetic shims and they are very accurate and easy to use.
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True...
Very useful, stays in place while fixturing build..
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Magnetic Shim Kit (28pc)
Magnetic Shim Kit (28pc)
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Great...
Everything was as advertised. Great quality tools.
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Magnetic...
Bought these thinking it was a novel idea.
Now I don't know how I worked without them!
The best time saver to come along in ages.
They really are worth every penny when you factor in the time/labor ratio, hunting for shim stock in the junk pile. -
Nice and handy.
Checked them out and they are very accurate. Better then what I need. Since getting them I have found they are useful for more than fabrication. They are not cheap, but quality tools never are.
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Almost...
I got both, metric and imperial sets. According to my digital calipers Imperial set was dead on, not even a thousands off. My metric shins are all of by 0.01 mm. For my purpose it’s fine. The handle on the metric box was missing a pin on one side but I found one in my shop that fits just fine. Overall great product.
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Awesome...
This will help any fabricator or metal working enthusiast. Infinite ways to use the only limitation is your imagination.
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Magnetic shin...
Great tool highly recommend them ease of lining up stuff before you weld great assortment of all sizes. They work well with the Fireball squares too.
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Thanks
These shims are a great tool.