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📐 Measure Like a Master — Precision That Commands Respect
The Fowler 52-240-005-1 Outside Micrometer offers a 4-5" measuring range with ultra-precise 0.0001" graduations and ±0.00025" accuracy. Featuring carbide-tipped, hardened, and micro-lapped measuring faces, it guarantees durable, repeatable results. Its satin chrome finish resists rust and glare, while the ratchet stop and locking clamp ensure consistent, effortless measurements. This professional-grade tool comes complete with a wrench and fitted case, making it an essential for precision-driven professionals.





| ASIN | B00B5HEU1C |
| Best Sellers Rank | #49,086 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Outside Micrometers |
| Brand | Fowler |
| Brand Name | Fowler |
| Customer Reviews | 4.6 out of 5 stars 232 Reviews |
| Global Trade Identification Number | 00646795107526 |
| Item Type Name | Tools |
| Item Weight | 0.02 Kilograms |
| Manufacturer | Fred V. Fowler Company, Inc. |
| Material | High Carbon Steel, Stainless Steel |
| Material Type | High Carbon Steel, Stainless Steel |
| Measurement Accuracy | 0.0001" |
| Range | 4-5" |
| UPC | 646795107526 |
| Unit Count | 1.0 Count |
M**O
Repeatable results
Just as good as the higher cost brands I've used. Accurate and MOST IMPORTANTLY "repeatable" results. Great for measuring pistons. I've already used it on Mitsubishi 4g63 and Toyota 2zz-ge pistons. Will be keeping this one.
S**G
Impressive Micrometer
I remember when Fowler first started selling tools. They started out low price and then as their popularity increased, so did the price. I was amazed to find this set at such a low price. Fowlers prices have actually come back down. This is no cheap tool. It is as well built and accurate as any Starrett at more than half the price. I am once again sold on Fowler.
Y**!
Accurate to .0005
Good read out. Works well
A**C
Don't expect high quality...
I bought the 1"-2" version for a cheap price. I bought it because I wanted the metal ratchet thimble to swap over to a Mitutoyo Mic which comes with a plastic one. The swap worked good and now I got a cheap back up Mic as well. It repeats ok. Build quality is lacking. Needs a good cleaning and some grease. Feels gritty. But I didn't expect much. I'm surprised that it actually repeats. Bottom line: you get what you pay for. If you need a nice mic, keep looking. If you just want it for a basic knock-around mic or spare parts it'll be ok. It gets 4 stars from me because it's actually slightly better than expected
J**F
Precio calidad
Buen producto
R**.
Fowler 52-240-003-1, Outside Inch Micrometer
Used this to build an engine. So, I would have to say it was well worth the money I paid for it.
J**S
Inspection passed!
These things are surprisingly top quality. I used them daily at my job holding .ooo4+/- tolerances. They pass every 6 months they are recertified. I am so suprised to find a pair this cheap with thisbgood of quality. The case is even holding up very well. Just get use to the texture of the case before carrying one handed. And whatever you do tell your co worker no when they want to borrow them. Hahaha
A**E
Good mic but mine came damaged from dropping drivers
Fowler are good (Ameri/nese) tools. But the thimble on mine was bent and hung up. More than likely dropped at my door step instead of placed down. I see them do it all the time everywhere. Amazon delivery van drivers walk up to the door and literally drop your stuff you pay for on concrete patios. I even have a few on my ring camera doing it. Amazon really needs to look into this and start immediately firing people for it. My new one that came was placed standing up against my door and the new mic works great and accurate compared to one of my toyo’s. So Fowler gets 5 stars Amazon (some) drivers gets 0
Trustpilot
1 week ago
2 weeks ago