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The Quattro adjustable square has a millimetre scale that can be set at three positions, 45°, 90° and 135° and has a tolerance ± 0.06° . It can also be folded making it easy to store and take with you in your
work trouser pocket.
The stock is made of anodised aluminium, the blade is 25cm long and 45mm wide and made of stainless steel with the scale being deep -etched and extremely hard -wearing.