7piece woodworking measuring block set for quick, accurate tool height setup Key benefits Saves setup time: Presized blocks let you set blade and bit heights quickly instead of measuring each adjustment. Improves consistency: Reproducible heights reduce trialanderror and help maintain repeatable cuts and profiles. Durable and portable: Lightweight aluminum alloy resists corrosion and stands up to workshop use while remaining easy to carry. What's included and how it helps Seven blocks in common heights for table saws, routers, and other tools, so you have the right increments on hand for most setups. Clear height markings on each block for fast identification and minimal guessing during changeover. Stackable design lets you combine blocks to achieve custom heights without extra measuring or shims. Compatibility and performance Works with table saws, router tables, jointers, and other stationary tools that require precise blade or bit height settings. Aluminum alloy construction provides a stable, flat reference surface that resists rust and wear in a workshop environment. Practical use scenarios Table saw: Use a single block or stacked combination to set blade height for consistent dadoes or throughcuts without running test cuts. Router table: Drop blocks against the router bit to quickly match bit height to template or workpiece thickness when changing bits. General setup: Use stacked blocks to establish repeatable fence or sled clearances, or to check and document tool heights for future projects. Simple to use Select the block or blocks that match the target height, place against the blade or bit, and lock the tool height. Clear markings speed selection and reduce setup mistakes. Materials and care Aluminum alloy construction; clean with a dry cloth and store in a dry place to maintain markings and finish.