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.
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.
Thin Non-magnetic Shims
Each shim is processed on top and bottom sides only. The sides are not ground on these and slightly undersized from their nominal (2×1”) dimensions. The shims are not hardened, but have a black oxide treatment. These shims are accurate in height to within 0.005” variance (+0.0035” / -0.0015).
What Comes Inside
28pc Kit
| Height (mm) | Length (mm) | Width (mm) | Pieces in Kit | Magnetic |
| 5 | 50 | 25 | 4 | YES |
| 7.5 | 50 | 25 | 4 | YES |
| 10 | 50 | 25 | 4 | YES |
| 15 | 50 | 25 | 4 | YES |
| 20 | 50 | 25 | 4 | YES |
| 25 | 50 | 25 | 4 | YES |
| 50 | 50 | 25 | 4 | YES |
Extended 44pc Kit
| Height (mm) | Length (mm) | Width (mm) | Pieces in Kit | Magnetic |
| 5 | 50 | 25 | 4 | YES |
| 7.5 | 50 | 25 | 4 | YES |
| 10 | 50 | 25 | 4 | YES |
| 15 | 50 | 25 | 4 | YES |
| 20 | 50 | 25 | 4 | YES |
| 25 | 50 | 25 | 4 | YES |
| 50 | 50 | 25 | 4 | YES |
| 1 | 50 | 25 | 4 | NO |
| 1.5 | 50 | 25 | 4 | NO |
| 2 | 50 | 25 | 4 | NO |
| 2.5 | 50 | 25 | 4 | NO |
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Shipping
Do you ship outside EU?
Yes, please visit this link for more information about shipments outside EU.
How long will it take to receive my order?
It depends on where you are. Orders processed here will take approx. 5-7 business days to arrive.
Product
Can I return my product?
If you need to return or exchange an item, please contact us with your order number and details about the product you would like to return or exchange. We will respond with instructions for how to proceed from there. Returns will be accepted within 30 days of receiving it. No returns on tools or any components that have been modified outside of Fireball Tool.
Manufacturer Information
This product is manufactured under the supervision of Fireball Tool Works LLC at:
Valtra (Shanghai) Machinery Co., Ltd.
Address: 605 Huabo R, Huating, Jiading, 201816 Shanghai, China
E-Mail: contact.eu@fireballtool.com
European Manufacturer: No