12" Aluminium Speed Square Black Measuring Rafter Roofing Triangle Joinery TE939

The square includes a handy 12" ruler with clear markings for quick measuring and scribing.

They can be used as an accurate saw guide, protractor and tri-square, 90° and 45° mitre square.

Easy to read scale allows you to find any angle from 0-180 degrees.

Instructions are not included so please ensure you know how to use this tool if purchasing.

Conversion table is included on the side of the square: inches to Feet & inch rise / foot = degrees