TechnoArt Set-Square with cutout triangle.

TechnoArt Set-Square with cutout triangle.

The TechnoArt Set-Square Set is a must have for technical drawing collection.

TechnoArt Set-Square with cutout triangle.

TechnoArt Set-Square with cutout triangle.

TechnoArt Set-Square with cutout triangle.

The TechnoArt Set-Square Set is a must have for technical drawing collection.

TechnoArt Student Protractor and Set-Square combination tool.

TechnoArt Set-Square with cutout triangle.

This transparent plastic Set Square is perfect for students, architects and designers. It is a scalene triangle with angles of 90, 60 and 30 degrees, and features a mm scale on its longest side.

Made from a durable, transparent acrylic this Adjustable Set Square from Jakar has bevelled edges and an accurately divided scale for easy reading. It has a precision 0.5 degree scale with printed number markings and is simple to use - just tighten the screw to lock into position once you have chosen your desired angle. Ideal for use with pencil and pen.

Made from a durable, transparent acrylic this Adjustable Set Square from Jakar has bevelled edges and an accurately divided scale for easy reading. It has a precision 0.5 degree scale with printed number markings and is simple to use - just tighten the screw to lock into position once you have chosen your desired angle.Ideal for use with pencil and pen.

This transparent plastic Set Square is perfect for students, architects and designers. It is a right-angled triangle with two interior angles of 45 degrees, and features a mm scale on one of its sides.

TechnoArt Blackboard Set-Squares are a welcome addition to any classroom.

TechnoArt Blackboard Set-Squares are a welcome addition to any classroom.

TechnoArt Student 4-Piece Set-Square set.

Rotring designs tools to enable people to think and create whenever inspiration takes them.

The Rotring Geometry Set is engineered with German precision ensuring premium performance.