A-10通用同心量規是由組裝三個主要組成部分。 ＃1）選擇標準或精密度的準確性，＃2）選擇主輥，＃3）選擇指示器（S）和/或其他配件。有兩種分類校準，并直接溯源到（NIST）。標準的黑色計，保證比≤4μm的更好（0.00016“）的精度。精密黃金計，保證比≤2μm的（0.00008更好"）的精度。

＃A-10標準的同心度測量儀型號≤4微米（0.00016“）
＃A-10P精密黃金同心Gage的型號≤2μm的（0.00008“）

A-10 Universal Concentricity Gages are comprised of three main components for assembly. #1) selection of standard or precison accuracy, #2) selection of main rollers, #3) selection of indicator(s) and/or other accessories. There are two classifications calibrated and directly traceable to (N.I.S.T.). Standard Black Gages are guaranteed to be better than ≤ 4µm (.00016") accuracy. Precision Gold Gages are guaranteed better than ≤ 2µm (.00008") accuracy.

#A-10 Standard Concentricity Gage Model ≤ 4µm (.00016")
#A-10P Precision Gold Concentricity Gage Model ≤ 2µm (.00008")