103 Pieces Calibrated Precision Steel Gauge Block Set Accurate Gauge Block Set with Wooden Case Machined Jo Blocks Hardened for Inspectors

Product Identity: This comprehensive 103-piece steel gauge block assortment provides a complete range of reference standards for exact dimensional calibration.

Primary Function: Engineered for high-accuracy verification, these gauge blocks serve as the ultimate standard for checking calipers, micrometers, and other workshop measuring instruments.

Premium Material: Each piece in this jo blocks set is meticulously machined from high-grade precision steel to ensure exceptional wear resistance and long-term dimensional stability.

Convenient Storage: The entire collection is securely housed in a fitted gauge block set with wooden case, featuring a hinged lid and a dedicated nested layout to protect each block from damage.

Professional Purpose: Designed for demanding environments, this set is perfect for tooling setups, quality control inspection benches, metrology labs, and precision toolrooms.