Stainless Ruler with Metric and Imperial Scales: The rulers are made of hardened stainless steel with polished surface, rust-resistant and durable The metric and imperial scales are both marked on the rulers by laser engraving, clear to read Adjustable Angle Between 0 and 360 Degrees: By rotating the central knob, the movable blade can be adjusted to any angle between 0 and 360 degrees to meet your angle requirements High Precision and Dimension: Size: Try Square 8-Inch/200 mm; Sliding Bevel 9-Inch/230 mm. The accuracy of the carpentry squares is up to ±0.1 degrees, and is engraved with metric and imperial scales (0-20 cm, 0-8 inch) Anti-corrosion Mahogany Handle: The handles are made of premium Mahogany with brass-bound The thickness is up to 2 cm This makes the handles durable enough to be used for decades without corrosion The surface of the wood is smooth for comfortable grip Wide Applications: This tool is very suitable for engineers, carpenters, craftsmen and architects to create perfect lines, precise angles and measurements, perfect for DIY and professional use, Manufacturer: Hangzhou Great Star Industrial Co.,LTD