For the mechanics and machinists out there, this Mitutoyo setting ring is all about getting your measurements exactly right. It's a 14mm ring with 10mm width and 38mm outside diameter, built with that legendary Mitutoyo precision we all trust. The accuracy is crazy good - we're talking ±1.5 micrometers, which is pretty much as precise as it gets. You use this for zeroing out your dial bore gauges, inside micrometers, or other measuring tools to make sure every reading is spot on. The actual inside diameter is marked right on the ring, so no guessing needed. It's made from hardened steel that holds its shape and tolerance through years of use in the shop. If you're working on engines, machinery, or any precision manufacturing, this is one of those tools that saves you from costly mistakes. The finish is smooth and consistent, and the size is clearly engraved for quick identification. It's not the flashiest tool in your box, but it's one of the most important for making sure your work meets spec every time. Mitutoyo doesn't cut corners, so you know this ring will maintain its accuracy through temperature changes and regular use. Seriously, if precision matters in your work, this setting ring is worth every penny for the peace of mind alone.