Review on Starrett T230XFL Micrometer Friction Graduation by Hector Watkins

This is one of the best Starrett 0-1 microphones. Starrett has been making it for almost several generations with virtually no changes in form or function. My old mic looks, calibrates and works just as good as the new brand. If you have the opportunity to take one of these, I recommend it. Thimble, not with ratchet as shown in the picture. representative of the product family" and everything else is correct, including the carbide disc, but it's not a ratchet model. Technically the increment is 0.001." and the vernier gives you an extra dimension.