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Academic Transparent Triangles
Retail: $2.57
See more from Alvin Drafting

    These Academic Drafting Triangles have a double-taper cutout center for easy lifting, enhancing efficiency. Made from durable, extra-heavy acrylic, they resist discoloration and warping. Ideal for students, hobbyists, and professionals, these...

    Clear Acrylic Professional Triangles - Straight Edge
    Retail: $3.45
    See more from Pacific Arc

      The Pacific Arc Clear Professional triangles will not discolor or warp with age and handling. 

      Smoke Triangles - Inking Edge
      Retail: $2.97
      See more from Alvin Drafting

        The Alvin inking edge triangles are made of molded 0.10" thick polystyrene and feature a transparent non-glare smoke tint for easy visibility.

        Plastic Math Set
        Retail: $3.15
        Item #: 569 WP4 - See more from Staedtler

          Stay prepared for math class with this essential 4-piece set, which includes a 6-inch ruler, a 4-inch protractor, a 45-degree triangle, and a 30/60-degree triangle. The transparent design of the pieces allows items to show through for enhanced...

          Fluorescent Triangles - Straight Edge
          Retail: $7.97
          Item #: 130F / 131F - See more from Alvin Drafting

            The Alvin Professional Fluorescent triangle is extremely popular because the refracted light has an illuminating effect on the drawing by accentuating the triangles edge.

            Clear Acrylic Triangles - Straight Edge
            Retail: $7.37
            See more from Alvin Drafting

              The Alvin Clear Professional triangles will not discolor or warp with age and handling. 

              Fluorescent Triangles - Straight Edge
              Retail: $4.03
              Item #: 2030F / 2045F - See more from Pacific Arc

                The Pacific Arc Professional Fluorescent triangle is extremely popular because the refracted light has an illuminating effect on the drawing by accentuating the triangles edge.

                Computing Adjustable Triangle - Inking Edge Drafting Supplies, Drawing Equipment, Adjustable Triangles
                Retail: $28.97
                Item #: LX708K - See more from Alvin Drafting

                  The Alvin Drafting Computing Adjustable Triangles are ideal for calculating length and distance in classrooms and professional applications, this tool features an optically clear acrylic body for easier and more accurate measuring. The thumbscrew...

                  Professional Adjustable Triangles - Straight Edge
                  Retail: $36.25
                  Item #: 964 51-8 - See more from Staedtler

                    Clear acrylic with smooth edges. Protractor section is graduated in 1/2 degree increments from 0 to 90 degrees. Available in even sizes from 8" to 12".

                    3" Triangle Stainless Steel Ruler
                    Retail: $7.97
                    Item #: SS3 - See more from Alvin Drafting

                      Made of durable stainless steel with etched inch graduations, this drafting triangle ruler is ideal for hobby and craft projects, drawing, drafting, and more. Its high strength and hardness make it perfect for woodworking, ensuring long-lasting...

                      Topaz Triangles - Inking Edge
                      Retail: $3.94
                      See more from Pacific Arc

                        The Pacific Arc inking edge triangles are made of molded 0.08" thick acrylic and feature a transparent non-glare smoke tint for easy visibility.

                        Scholastic Triangle Set
                        Retail: $3.66
                        Item #: TR-8W - See more from Pacific Arc

                          One of the best value triangles on the market! Designed specifically for students, crafters, and professionals on a budget.Available in: 8", 10", 12"

                          Tru-Angle Adjustable Triangle - Straight Edge
                          Retail: $29.97
                          Item #: 108C - See more from Alvin Drafting

                            The Alvin Drafting Tru-Angle Adjustable Triangle combines the features of a 45°/90° adjustable triangle with those of a protractor, allowing you to draw angles from 0° to 90° with ½° accuracy. It boasts die-engraved graduations for...

                            10" Triangle Set
                            Price: $5.30
                            Retail: $5.59
                            Item #: HX18311 - See more from Helix

                              Enhance your drafting with the Helix Student Plastic Matching Triangles 2 Piece Set. This set includes 45°/45°/90° and 30°/60°/90° triangles with Imperial and Metric graduations and beveled edges for accurate lines. Made from blue-tinted clear...

                              Fluorescent Triangles - Inking Edge
                              Retail: $4.40
                              See more from Alvin & Co.

                                The Alvin fluorescent inking edge triangles are made of molded 0.10" thick polystyrene and feature a fluorescent orange color reflects light along the drawing edge.

                                Aluminum Calibrated Triangles
                                Retail: $8.50
                                See more from Alumicolor

                                  Alumicolor® Calibrated Aluminum Triangles are made of tempered aluminum. Photo anodized calibrations are a part of the finish and resist cleaning or rubbing off. Ultra smooth finish won't mark your work surface.

                                  Professional Adjustable Triangle - Inking Edge
                                  Retail: $32.95
                                  Item #: 2008G - See more from Pacific Arc

                                    Professional-quality adjustable triangle with inking edges.

                                    Acrylic Cutting-Edge Triangles
                                    Retail: $16.99
                                    See more from Art Alternatives

                                      These clear acrylic triangles features grid markings including centering lines to facilitate scaled drawings, geometric compositions, and detailed linework. These are multi-use tools, handy for measuring, drawing and cutting. Two edges are beveled...

                                      Super Math Set
                                      Price: $22.80
                                      Retail: $33.75
                                      Item #: 559 86 - See more from Staedtler

                                        The Staedtler Super Math Set contains all the essential tools a student needs for math, architecture, and engineering courses.

                                        2-Piece Aluminum Triangle Set
                                        Retail: $18.75
                                        Item #: 5200-1 - See more from Alumicolor

                                          Alumicolor Calibrated Triangles are made of tempered aluminum. Photo anodized calibrations are a part of the finish and resist cleaning or rubbing off. Ultra smooth finish won't mark your work surface. Available in 45/90 or 30/60-angles with...

                                          College Combination Set
                                          Retail: $9.25
                                          Item #: 569 32BK - See more from Staedtler

                                            Some of Staedtlers's most popular tools all in one set! These tinted plastic tools all have inking edges.

                                            Fairgate Aluminum Triangles
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                                            Price: $11.60-$54.20
                                            Retail: $15.99
                                            See more from Fairgate

                                              Lightweight, durable aluminum with matte-satin finish that resists stains and tarnishing. Features 1/16" graduations on the 90 angle. May also be used as a template for circles from 1/16" to 1 3/8".Made in the USA

                                              Using a drafting triangle is straightforward and involves a few simple steps. Drafting triangles are commonly used in technical drawing to create accurate angles and straight lines. Here’s how you can use one effectively:

                                              1. Choose the Correct Triangle: Drafting triangles typically come in 30-60-90 and 45-45-90 degree variations. Select the triangle that has the angle you need for your drawing.
                                              2. Align the Triangle with a Straightedge: Place a straightedge (such as a T-square or ruler) on your drawing surface. The straightedge will provide a base for the triangle to rest against.
                                              3. Position the Triangle: Place the longest side of the triangle against the straightedge. Ensure the triangle is firmly against the straightedge so that it doesn't move while you're drawing.
                                              4. Draw Vertical Lines: To draw a vertical line, slide the triangle along the straightedge until the position where you want the line. Hold the triangle steady and draw along the edge perpendicular to the straightedge.
                                              5. Draw Angled Lines: For angled lines, position the triangle so the desired angle is at the point where you want to start drawing. Use the appropriate side of the triangle (either the 30°, 45°, 60°, or 90° angle) to guide your pencil.
                                              6. Switching Angles: If you need a different angle, simply flip the triangle or use a different triangle with the required angle. You can also combine two triangles to create other angles.
                                              7. Check Accuracy: Ensure that the triangle stays aligned with the straightedge for consistent accuracy. Re-check positions regularly to maintain precision in your drawings.

                                              Tips:

                                              • Hold the Triangle Firmly: Make sure to keep a steady hand to prevent the triangle from slipping.
                                              • Clean the Tools: Keep both the triangle and the straightedge clean to avoid smudging your drawing.
                                              • Use Light Pressure: Apply light pressure when drawing to maintain sharp and precise lines.

                                              Using a drafting triangle effectively requires practice, but by following these steps, you can achieve accurate and clean technical drawings.