Accuracy ±0.0001". Hardened to HRC 57-60. 3/4" diameter, 1/4-28 I.D.thread. Four connecting screws included; make any length desired.
Each block clearly marked for size. Hardened and lapped. Complete in fitted case.
36-piece set including 9 blocks 0.101" to 0.109" by 0.001". 15 blocks 0.050" to 0.190" by 0.010".
9 blocks 0.200" to 1.000" by 0.100". 1 block 0.0625". 1 block 0.125".
1 extra block 1.000". 4 screws for connecting spacer blocks and hex keys.