A flat piece of plastic with standard symbols and used as guide for drawing images on plans.

A thin plate (as of metal or celluloid) with holes usually of several sizes used to confine an erasure to a limited area.

It is an essential tool. Paper will be attached and kept straight and still, so that the drawing can be done with accuracy. This tool is usually mounted to a floor pedestal in which the board turns to a different position, and also its height can be adjustable.

A device which is mounted to the drawing board or drafting table. It has rulers whose angles can be precisely adjusted with a controlling mechanism.

A ruler that has a 3-lobed cross-section with 6 different types of scales on the edges (2 on each face) used for measuring and preparing scale drawings such as blueprints and maps. It is also called an architect's scale.

This tool contains pre-dimensioned holes in the right scale to accurately draw a symbol or sign