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- Jan 27, 2024
- Messages
- 28
I am looking to buy a set of micrometers for hobby machining, and I am trying to work as much in metric as possible. I would like be able to measure parts with more accuracy than I am able to machine them, so I am aiming to get a set of micrometers in the 0-250 mm range and 0.001 mm graduation (0-6'' and 0.0001'' graduation ). However, it seems impossible to find such a set at a reasonable price.
An imperial and mechanical set of 0-6'' and 0.0001'' graduation can be bought on Amazon for something like 120 dollars, but there is no metric equivalent available. Metric versions of these no-name Chinese sets are hard to find, but only at 0.01 mm graduations. Now, it seems to me that since 0.0001'' = 0.00254 mm, it should possible to find metric mechanical sets with at least 0.002 mm graduations. Yet I can only find 0.01 mm, and at that point, I may as well use a good caliper, since it can measure with that accuracy in a wider range and at much lower cost.
Digging further into the more expensive brands (Mitutoyo and Starret) it seems that something similar happens: Mitutoyo's 0-150 mm range set has 0.01 mm graduation, and Starret doesn't make any that are metric. It would seem that my only option is to buy electronic micrometers in the 0-6'' range and change the units. Here's an ilustration of the situation in McMasterCarr's catalogue, but it's like this everywhere I have looked.
Do you know if there are any providers of 0-150 mm mechanical sets with at least 0.002 mm graduation-accuracy?
An imperial and mechanical set of 0-6'' and 0.0001'' graduation can be bought on Amazon for something like 120 dollars, but there is no metric equivalent available. Metric versions of these no-name Chinese sets are hard to find, but only at 0.01 mm graduations. Now, it seems to me that since 0.0001'' = 0.00254 mm, it should possible to find metric mechanical sets with at least 0.002 mm graduations. Yet I can only find 0.01 mm, and at that point, I may as well use a good caliper, since it can measure with that accuracy in a wider range and at much lower cost.
Digging further into the more expensive brands (Mitutoyo and Starret) it seems that something similar happens: Mitutoyo's 0-150 mm range set has 0.01 mm graduation, and Starret doesn't make any that are metric. It would seem that my only option is to buy electronic micrometers in the 0-6'' range and change the units. Here's an ilustration of the situation in McMasterCarr's catalogue, but it's like this everywhere I have looked.
Do you know if there are any providers of 0-150 mm mechanical sets with at least 0.002 mm graduation-accuracy?
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