Feeler gauge

The invention discloses a feeler gauge which comprises an outer shell, a cover plate and a plurality of plug pieces, an installation column is fixedly arranged on the outer shell, and the cover plate is installed on the outer shell through a locking mechanism; the feeler gauge is further provided with connecting pieces with the same number as the plugging pieces, the connecting pieces are installed on the installation column, the multiple plugging pieces are installed on the installation column respectively and clamped on the limiting grooves, the connecting pieces are fixedly connected with shifting pieces and extend to the outer side of the outer shell, and the shifting pieces are distributed in a fan shape. In order to overcome the defects in the prior art, the feeler gauge is invented and has the advantages of being convenient to use, capable of protecting the patch from being damaged, efficient and economical. 本发明公开了一种塞尺，包括外壳体，盖板、多个塞片，所述的外壳体上固定设置有安装柱，盖板通过锁紧机构安装在外壳体上；塞尺上还设置有与塞片数量相同的连接片，连接片安装在安装柱上，多个塞片分别安装