🔍 SPE-X is a specialized **nano-coating** applied to certain SpeTool bits to increase their performance and longevity. This coating reduces friction and heat buildup during cutting, which in turn helps the bit stay sharp longer (SpeTool mentions up to 2.5× longer life compared to uncoated bits):contentReference[oaicite:15]{index=15}. The coating also contributes to smoother cutting edges on the workpiece because a cooler, sharper bit cuts more cleanly. In practical terms, bits with the SPE-X extreme life coating can run longer between sharpenings and handle tougher materials without losing their edge as quickly. It’s a great feature for production work or CNC use where bits see a lot of mileage.

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