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".

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

The Alvin Professional Drafting Triangle is a high-quality 12" triangle constructed of 0.10" thick molded polystyrene plastic that is fluorescent orange to provide an illuminating effect on drawings.

Made of heavy-duty 0.09" thick clear plastic with a beveled outer edge for accurate drawing, this 8" protractor features a center cutout finger lift and precise die-stamped graduations in 1/2 degree increments.

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.

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

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

Ideal for easy and accurate measuring and cutting, Elmer’s L-Shaped Ruler is acid-etched to last for years. This sturdy ruler measures 3” x 4” and resists cuts by X-Acto knives.

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 Koala Tools Versa Ruler is the first and only size-adjustable, shape-making ruler that allows for the fluid creation of unlimited, multi-sided shapes. This amazingly innovative tool combines the essential features of 14 drafting tools into one.

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.

The one tool for almost any building project! It features a 4" ruler with English and metric scales, (6" ruler on the large square), a 90° square, strip identification gauge, dowel tubing identification gauge, stop rail, and built-in protractor.

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.

Ideal for the graphic artist, this sturdy aluminum Mini L-Square can be used at school or in the studio, home, or office for layout work, cutting, and/or drawing. The Mini-L-Square measures 12” x 6”.

Aluminum and Staedtler Designer L-Squares are graduated in fractions of an inch, the long arm in 8ths, 24ths, 12ths, 6ths, 3rds, 2/3rds, with 8ths on the reverse, and the short arm in 8ths, 32nds, 16ths, 8ths, 4ths and 1/2s.

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

This high-quality, 10 piece math set from Staedtler features rubber oval grips for a professional hold!

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.

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.

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.

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.

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.

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 kits are molded of clear plastic with legible black markings for exact measuring.