Graders Triangle Ruler, 30cm (Flexi Plastic)

The Essential Compact Multi-Angle Workhorse for Fashion Design

Master technical drafting and clean garment adjustments on the go with the Graders Triangle Ruler (30cm Soft Plastic Edition). Also known as a grader’s set square, this highly functional, compact layout tool is a staple in design studios, textile universities, and sample rooms worldwide. Merging multiple geometric plotting tools into a single travel-friendly instrument, it eliminates the need to carry cumbersome full-sized drafting squares. It allows pattern cutters, tailors, and students to fluidly establish perpendicular axes, grade sizes up or down, and true up raw seam lines with total confidence and millimetric precision.

Engineered for Diverse Geometric Layout Calculations

Despite its nimble 30cm profile, this multi-axis instrument is engineered to handle complex flat-pattern manipulation. Its clever triangular configuration functions as an all-in-one guide that helps you calculate, map, and draw:

• Flawless 90° Right Angles: Instantly drop perfect perpendiculars to construct block corners, square up grainlines, or realign horizontal balance lines.
• Integrated Protractor Angles: Plot intricate dart degrees, lapel slopes, or shoulder slants directly using the built-in center protractor calibration.
• Parallel Seam Allowances: Quickly offset standard tailoring seam allowances or structural hems via the dedicated, parallel grading lines arranged seamlessly along the bottom edge.
• True 45° Bias Angles: Locate a perfect mathematical bias line in seconds for cutting fluid drapes, cowl collars, and matching bias binding strips.
• Incremental Size Grading: Shift patterns across different size specs effortlessly by utilising the micro-fine grid matrix lines embedded within the transparent body.

Flexible, Workroom-Proof Soft Plastic Performance

Crafted from high-grade 1.2mm flexible plastic, this triangle ruler is built to endure the chaotic daily environment of busy cutting tables and packed student portfolios. It bends smoothly without snapping, fracturing, or chipping when dropped or wedged under heavy design books. The crystal-clear transparency keeps your underlying design lines and pattern markings perfectly visible while you work. Furthermore, the red and black metrics are permanently printed into the plastic body, ensuring that the numbers and lines will never rub off or fade over time—even after heavy contact with mechanical pencils, tracing wheels, and fabric chalks.

Technical Specifications