【Scale】Wiht clearly engraved millimeter scale, the measuring result is very easy to read. 【Chromed Plated】High quality stainless steel ruler with chromed surface, sturdy and durable. 【Usage】Ideal woodworking tool for scribing lines on the wooden board at the required spacing. 【Slider】Screw fixed slider facilitates accurate scribing. 【Durable】The scribing edge is quenched and hardened, anti-wear and durable., Manufacturer: Hyuduo