If you work with precision measuring tools, this Mitutoyo setting ring is an absolute essential. The 20mm size with 10mm width and 45mm outside diameter is perfect for calibrating your dial bore gauges, inside micrometers, and other precision instruments. What's great about Mitutoyo is their incredible accuracy – this ring has +/-1.5 micrometer accuracy, which is exactly what you need for serious machining work. The actual calibrated diameter value is marked right on the ring, so you always know exactly what you're working with. I've been using Mitutoyo tools in my shop for years, and their setting rings are just as reliable as their measuring instruments. The steel construction is durable and maintains its calibration over time, even with regular use. It makes zero-adjusting your bore gauges so much quicker and more accurate than trying to use other methods. If you're tired of inconsistent measurements or spending too much time on calibration, this setting ring will make your workflow so much smoother. The quality is exactly what you'd expect from Mitutoyo – professional grade and built to last. Seriously, if precision matters in your work, this is one of those tools that pays for itself in time saved and accuracy gained.
Free 30-day returns 
Free 30-day returns
