TRACER Metric Speed Square 300mmTRACER Speed Squares are precision carpentry tool ideal for marking out lumber and raftersBuilt from robust aluminium and perfect for the jobsiteIncludes quick reference marking guides for 22.5°,30°, 45°, and 67.5°Achieve simple 0° - 90° markingMachined from robust yet lightweight aluminiumPre-calculated hip and valley scales