Specifications Material Aluminum AlloyMeasurement Scales Double sided Centimeters Inches Measurement Range 0 180° for angle measurementSurface Finish Precision Full edge CarvingBuilt in Angle Templates 30° 45°Adjustable Components Rotatable Support and Quick release Adjustment RodThickness Enhanced Thickened BaseUsage Scenarios Positioning Drawing Angle MeasurementFeatures 1 Dual Measurement AccuracyIntegrated ruler and angle measurement enables simultaneous distance and angle calculations achieving high precision for complex tasks 2 Bidirectional Zero point PositioningThe rotatable design allows switching reference edges effortlessly while aligning to zero point for optimal accuracy during woodworking or crafting 3 Double sided MetricInch ScalesFeatures separate centimeter and inch markings to ensure clarity and seamless unit switching without risk of misreading measurements 4 Thickened Aluminum Alloy ConstructionEngineered with an enhanced base thickness and industrial grade rigidity to maintain its shape during heavy usage in professional settings 5 Rapid Angle AdjustmentPositioningBuilt in templates for quick 30° and 45° angle drawing paired with a checkpoint system for precision and efficiency improvement Package Included 1 x Aluminum Triangle Ruler