A small precision square, ideal for scribing and as a precision rule for planed wood workpieces. Slidable, hardened steel rule (not rustproof) and 45°/90° square head. The deep-etched scale ensures excellent and lasting readability. Scale with 0.5 mm on reverse. Solvent-resistant and weatherproof grey cast iron heads with wrinkle-finish coating. Precision-ground edges. Rule length 150 mm.