7" HEAVY DUTY ALUMINIUM METAL ROOFING RAFTER SPEED SQUARE ANGLE MITRE GUIDE UK
They can be used as an accurate saw guide, protractor and tri-square, 90° and 45° mitre square. Superb heavy duty 7" aluminium alloy speed square. 7" ALUMINIUM SPEED SQUARE. Easy to read scale allows you to find any angle from 0-180 degrees.