Groove size measuring scale

The utility model provides a groove size measuring scale, which comprises a first measuring scale and a second measuring scale, scales are marked on the first measuring scale and the second measuring scale, the first measuring scale and the second measuring scale are rotatably connected and can be vertically arranged, and the first measuring scale is used for being in contact fit with a groove surface of a plate; the first measuring scale and the second measuring scale which can rotate relatively and can be vertically arranged are adopted, the groove size can be accurately measured quickly, simply and conveniently, the groove size does not need to be visually observed for measurement, the measurement precision is improved, and unstable factors influencing precision measurement are reduced. 本实用新型提供的一种坡口尺寸测量尺，包括第一测量尺与第二测量尺，所述第一测量尺与所述第二测量尺上均标有刻度，且所述第一测量尺与所述第二测量尺可转动连接且能垂直布置，所述第一测量尺用于和板材的坡口面接触配合；采用可相对转动且可垂直布置的第一测量尺和第二测量尺，快捷简便的将坡口尺寸准确的测量出来，不需要目视坡口尺寸来进行测量，提高测量精度，减少影响精度测量时的不稳定因素。