Small and exquisite appearance, fast and accurate, to use and carry Double scale, available in both metricand inch scales, 0~30mm / 0~1.2inch, to meet different needs It can be used to measure for slotting and cutting purposes, and to connect slotting and tenons joints It has a wide ranges of applications, whether it is a table, cantilevers, sliding table, carvings table, or other tools for slotting, it can be used to adjust the required slotting size Easy to use: able to internal and external dimension and compare with other accessories to simplifies operations Made from aluminum alloy, with a sturdy structure, high hardness, and long service life, Manufacturer: LIzogli