For woodworkers, machinists, or CNC users, this set of metric setup blocks is a massive time-saver. It’s a kit of 15 individual, anodized aluminum blocks, each with a precise, laser-engraved height. The sizes range from 1mm all the way up to 25mm, covering all the common measurements you'd need for setting tool heights. Need to set your table saw blade exactly 12mm high? Just grab the 12mm block and slide it next to the blade. Setting the depth of a router bit for a dado? Use the corresponding blocks. They have a super tight tolerance of ±0.01mm, so you get professional-level accuracy every time, eliminating guesswork and potentially reducing setup time by 60%. The anodized aluminum surface is durable, corrosion-resistant, and won't scratch your expensive tool surfaces. The markings are laser-etched, so they won't wear off from oil or use. The blocks are compact and come in a handy, waterproof PVC storage case to keep them organized. Whether you're a serious DIYer or a pro, these blocks make calibrating your table saw, router, jointer, or planer incredibly fast and precise.