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在普通的300毫米卡尺上,装上一个简单的附件(图1),即可对沟槽、大肚孔径尺寸进行测量,既方便又经济。使用说明 1.测头尺寸H(2倍的H/2)最好作成整数,测柱长短根据被测沟槽或孔径大小而定。
With a simple accessory (Figure 1) on a regular 300mm caliper, it is both easy and economical to measure the groove and the size of the belly aperture. Instructions 1. Probe size H (2 times the H / 2) is best made of an integer, the length of the test column according to the measured groove or aperture size.