A-10通用同心量规是由组装三个主要组成部分。 ＃1）选择标准或精密度的准确性，＃2）选择主辊，＃3）选择指示器（S）和/或其他配件。有两种分类校准，并直接溯源到（NIST）。标准的黑色计，保证比≤4μm的更好（0.00016“）的精度。精密黄金计，保证比≤2μm的（0.00008更好”）的精度。

＃A-10标准的同心度测量仪型号≤4微米（0.00016“）
＃A-10P精密黄金同心Gage的型号≤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”)