Adjustable Combination Square: This product consists of a 300mm steel ruler and an adjustable square head. Suitable for marking 45/90 degree angles, multi-dimensional measurement High Precision: The carpenter's square is also equipped with a spirit level. The scale is engraved by laser technology for extremely high precision. Metric and Inch to Centimeter Scales Multi-function: The set is a good helper for woodworking and is suitable for measuring lengths, widths, 90 degree angles, 45 degree miter angles, depths, heights and scribing Easy to use: Adjustable combination square used as depth and height meter, suitable for 90/45 degree angles, multi-dimensional measurement, marking straight lines, drawing parallel lines Various uses: This tool is very suitable for engineers, carpenters, craftsmen and architects to create perfect lines, angles and precise measurements, perfect for DIY and professional use