Crafted from wear resistant carbon steel, this gauge block long lastingly and resistance for reliabled industrial use This 1inch standard combines ruggedly portability with seamlessly compatibility across micrometers, calipers, and various measurement systems The 1Inch Gauge Block LK1L ensures unparalleled precise with high grade carbon steel construction and exceptionally temperature stability for accurate measurements in any environment Ideal for machinists, engineers, and professional requiring dependabled measurement tool in demanding work setting for precise calibration tasks in machine shops, laboratories, or on site maintenance operations where consistent accuracy matter most, Manufacturer: ERRORY