Protractors and Triangles

Locking screw adjusts and holds any desired angle. Accurately divided from 0 to 90 degrees, in half-degrees. Heavy clear acrylic plastic. Available in 8" and 10".

Use the all-in-one Alumicolor Alumidrafter Drafting and Measuring Tool to measure and scale drawings, draft circles and arcs, and draw angles and triangles. The portable, two-sided tool has 16 calibrations, featuring all the standard measurements an architect could need.

Alumicolor Aluminum Triangles are stamped out of aluminum sheet and then photo-anodized with solvent-defying calibrations for years of productive drafting.

Types: 30-60 degree and 45-90 degree triangles. Smoke colored, styrene plastic with fingerlifts. Double-bevel inking edge. Sizes to 14".

Blick Aluminum Triangles are durable and have a stain-resistant finish that won't mar your work surface.

Made of clear acrylic plastic, .080" thick, with finger lifts. Styles: 45°/90° and 30°/60°. Sizes up to 18". Also set.

These aluminum triangles feature inches and metric (mm/cm) calibrations and hole sizes. The edges are calibrated to 32nds along the entire English edge, and all holes are accurately calibrated and labeled for convenience.

Made of clear acrylic with smooth edges, these transparent adjustable triangles from Staedtler permit tracing of angles from 0° to 90°. The protractor section is graduated in 1/2 degree increments.

These professional triangles from Staedtler Mars feature precision-cut straight edges for pencil work and a beveled center with a cut-out finger lift.

These transparent adjustable triangles from Westcott permit tracing of angles from 0° to 90°. The inner gradations on the arc show the degrees of one angle, while the outer row of gradations show the degrees of the complementary angle.

Westcott's Professional series of triangles are crafted with smoke-tinted transparent acrylic. They are very sturdy and resist scratches and breakage. They feature an inking edge and a double bevel cut-out center for easy pick up.

Contains an inch/metric ruler, an 180 degree protractor, plus 45 degree and 60 degree triangles. Clear plastic, with legible black markings. In plastic pouch. Sizes up to 12".

These gridded triangles are made of clear acrylic and feature a stainless steel edge on one side for easy cutting. Edges are graduated in 16ths to the inch and also includes an 8ths to the inch graph feature.

These triangles are molded of clear plastic with highly legible black markings. They feature both inch and metric calibrations, an inking edge, a beveled edge, and a center cutout.

Locking screw adjusts and holds any desired angle. Accurately divided from 0 to 90 degrees, in half-degrees. Heavy clear acrylic plastic. Available in 8" and 10".

This handy dual-use drafting kit allows you to use the pencil or compass on paper or touch screen by simply changing the tip.

The Alvin Drafting Kit contains all the most commonly used components for architectural drafting, conveniently assembled in one carrying case. It's perfect for students looking to eliminate guesswork, save time, and work with consistent equipment.

Ideal for school use. This protractor features .060" clear plastic with a solid center design and beveled edges. It has clearly stamped graduations in 1° increments.

Use this handy 6"Dia two-in-one protractor and compass to draw circles and measure angles.

This Full Circle Protractor, made of transparent plastic, measures 6" in diameter. It's crossbeam is 1" thick. It's precisely divided into half degrees, from 0° to 360°.

The Helix Swing Arm Protractor has an arm that rotates 180°, making it easy to measure and draw accurate angles. Measure from left to right or right to left. The protractor also includes a 6" ruler with inch and centimeter markings. Made of transparent, shatter-resistant plastic.

This excellent school geometry set is flexible for safety, and transparent for easy use. It gives you all of the basics - a compass, a protractor, a 45° triangle, and a 60° triangle - in a vinyl wallet.

These collegiate protractors are made of tinted plastic that reduces glare. Clockwise and counter-clockwise graduations in 1/2 increments assure precise measurement. Other features include beveled edges, a center cut-out, and a finger lift.

These collegiate protractors are made of tinted plastic that reduces glare. Clockwise and counter-clockwise graduations in 1/2 increments assure precise measurement. Other features include beveled edges, a center cut-out, and a finger lift.

The Staedtler Math Set contains all the essential tools for math class in a handy storage box. The set is built around Staedtler's Norris Club 550 School Compass, a precision compass with integrated universal adapter and safety point — ideal for students' first circle-drawing exercises.

The Staedtler 11-pc Super Math Set contains all the essential tools a student needs for math, architecture, and engineering courses.

This transparent 180° protractor ruler features 8ths graph, 16ths to the inch, and centimeter scales. The engineer protractor ruler features centimeter and tenths to the inch graph scales. Both are laminated for durability.

Great for the entry-level math student, this set includes a brightly colored, student-grade 6" safety compass and a 6" 180° protractor with a center opening.