1. Precision Calibration: The block gauge features a meticulously designed 4 step thickness meter calibration block, made from 1018 steel, ensuring exceptional accuracy for your measuring needs. 2. Versatile Measurement Options: This innovative block gauge allows for both metric measurements, accommodating steps of 1.0", 2.0", 3.0", 4.0" as well as 25.0mm, 50.0mm, 75.0mm, and 100.0mm, making it good for various applications. 3. Compact Design: With eight distinct steps, the compact block gauge fits easily in your toolbox. Simply set it down for measurements or tip it over for quick access to metric sizes— for seamless calibration. 4. High Tolerance Levels: The block gauge offers a step thickness tolerance of ±0.002", providing you with reliable and consistent results for all your calibration tasks, whether in professional or DIY . 5. Universal Block Compatibility: Our block gauge design combines both measurement scales on one device, streamlining your calibration process and enhancing efficiency., Manufacturer: OTENC