Precise 36 Piece Space Block Set – 3101-0003

• Four 1/4″-28 connecting screws are included to make any length desired.
• Each block has an internal 1/4″-28 thread.
• Meets or exceeds federal specifications.
• Accuracy: 0.0001
• Work surface is hardened to 57-60 RC.
• Made of precision tool steel.
• Individually marked.
• Complete in fitted case.

Set includes: 9 blocks that are .101 to .109 by .001″, 15 blocks that are .050 to .190 by .010″, 9 blocks that are .200 to 1.000 by .100″, 2 blocks that are .0625″ and .125″ and 1 extra block that is 1.000″.