Scope of application: Woodworking square 90° positioning block woodworking right Angle fixture woodworking tools inch aluminum alloy height ruler The combination bars in this set allow for up to 100 different measurements. Stackable setting bars can be used individually or together, providing versatility and efficiency in your woodworking projects. Specification: 15 pieces measuring block - plastic box Achieve precise measurements with ease using this set of woodworking blocks. Perfect for setting fences, drill bits, and other cutting tools, these blocks are faster and more accurate than using a combination square. Designed for woodworking enthusiasts and professionals, these blocks are a must have tool for anyone looking to achieve accurate and high quality measurements., Manufacturer: Duanthry