Quandaries and Queries


I am a music instructor just trying to get a horn repaired. I have been trying to get replacement pearls for a keyboard of a horn. The mechanic needs the measurement in inches. The calibers say that the size is .115 mm can you tell me what that is in inches, I tried your formula of 2.54 mm per inch but this is a smaller size and I cannot seem to figure it out.

thank you so much,


Hi Brian,

Either you are measuring cms or you have a decimal place wrong --

1 inch = 2.54 cm = 25.4 mm. 1 inch = 25.4 mm --> 1 mm = 1/25.4 = 0.03937 in --> 0.115 mm = (0.115)(0.03937) = 0.004528 in.


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