Premium Locator The brass locating block can be adjusted to the position you want, then just tighten the screws, easy to use. Can be used on all types of steel ruler. Premium Material High quality stainless steel DIY measure, accuracy up to 0.5mm, the stop easily passes through the ruler. Stable performance A good measuring tool for all types of woodwork. It's easy to put on and take the measurement and transfer it as you like. Once set, you can draw an infinite number of times. Easy to use The brass positioning block can be adjusted to the position you want, then just tighten the screws, easy to use. Can be used on all types of steel rulers. With the steel ruler, all measuring jobs can be carried out with high precision within a measuring range of 0-30 cm. Wide range of applications Compact and lightweight, with fully removable fence , the Wfix Scribing Tool is a simple and effective measuring and marking tool for professionals and enthusiasts of woodworking, crafts, DIY projects, etc.