Westward Gage Block,1-2-3 4KY14

Tri-Block Pair, Length 3 in, Width 2 in, Height 1 in, Number of Holes 23, Number of Blocks 2, Included Certification Not Applicable, Long Form Calibration Certificate No, Case Type Plastic Case, Hardness HRC 55-60, Hole Style 5 in Tapped and 18 in Untapped, Includes Plastic Case, Includes Case Yes, Material Steel, Squareness 0.0003 in, Parallelism +/-0.0002 in, Tolerance +/-0.0003 in, With Holes Yes

Material Hardened Ground Steel Includes 2 Blocks, Hex Wrench, 5 Mounting Bolts, and Case