WEN - 81-Piece Steel Gauge Block Set with Case, Case #44 #45

Product Description

• Workshop-grade set features 81 individual steel blocks of various sizes
• Sizes range from .05 inches all the way up to 4 inches
• Includes unique certificate of inspection following ASME B89.1.9 standards
• Calibrate measuring equipment with a tolerance of +0.25 μm to −0.15 μm