Fowler Inch Series 81 Piece Rectangular Gage Block Set – 53-670-080

• Each block is rectangular steel and hardened to 65RC, stress relieved, lapped to accurate size, parallelism and flatness, then carefully inspected and marked for size; designed to meet close tolerances
• Each set includes standard sizes found in more expensive sets. Each block individually serialized; conforms to rigid standards of the National Institute of Standards & Technology
• Includes fitted wood case

Blocks included in 81 Piece set:
9 Blocks .1001 thru .1009 step of .0001
49 Blocks .101 thru .149 steps of .001
19 Blocks .050 thru .950 steps of .05
4 Blocks 1.000 thru 4.000 steps of 1.000

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