Neiko 10193A Titanium Step Bits, Unibit Set, 28 Sizes Excerpt: Exploring the Neiko 10193A Titanium Step Bits left us impressed by the sheer versatility of the 28-size Unibit set. Designed for high-speed steel and tailored for metal cutting, these standard (SAE) step bits69 meet thread sizes from #30 to #80 effortlessly. The titanium coating shone as a highlight, offering durability and reducing friction during operation. We appreciated how these industrial Unibit钻头 delivered precise, incremental steps without compromising performance. Our tests confirmed their reliability for both beginner and intermediate users, making them a practical choice for home workshops or maintenance projects. The tight tolerances aligned perfectly with our expectations, and the tool-less collets added a touch of convenience. Overall, the Neiko set proved its worth as a dependable, cost-effective solution for metalworking tasks. We found ourselves reaching for these bits frequently across various challenges.