Precise 81 Piece 0.05" to 4" Grade 0 Steel Gage Block Set

NIST Certified and with Fitted Case

Grade 0 (2) tolerances = 4, -2 millionths.

Step Increments    (19) 0.05; (4) 1.000; (49) 0.001; (9) 0.0001 

Sizes included:

(19) 0.050-0.950 (with 0.05 Step); (4) 1.000-4.000 (with 1.000 Step); (49) 0.101-0.149 (with 0.001 Step); (9) 0.1001-0.1009 (with 0.0001 Step)