These useful tools are Matsui originals, which allow marking without a ruler. They may be used with items of various shape, including parallel, vertical, cylindrical, objects with rounded corners, etc.
To ensure high accuracy and durability, the jaw tips are tempered. The scale etchings are clear, and easy to read.
Designed to take basic layout operations from 'approximate' to 'precise', this scribing gauge permits a line to be marked parallel to an edge along the marking head, square to an edge along the beam and to do so repeatably and reliably.