Precise 81 Piece Rectangular Steel Gage Block Set Grade AS-2 (B)
*Product # 100-811 Comes with NIST Certificate.
Grade AS-2 (B) tolerance = ±.000050".
Each block is steel and hardened to 65RC, stress relieved, lapped to accurate size, parallelism & flatness, then carefully inspected and marked for size designed to meet close tolerance.
- Each set includes standard sizes found in more expensive sets. Each block individually serialized and conforms to the rigid standards of the National Bureau Of Standards.
- 9 Blocks = .1001-.1009" Step = .0001"
- 49 Blocks = .101-.149" Step = .001"
- 19 Blocks = .05-.95" Step = .05"
- 4 Blocks = 1-4" Step = 1"
Grade AS-2 (B) ±.000050" 81 Pc. Set with N.I.S.T. Certi, Steel
