This high speed steel 8-piece boring bar set includes three different length boring bars each for minimum bores of 5/16″ and 3/8″, and two boring bars for minimum bores of 7/16″. The bore depth ranges from 3/4″ to 1-11/16″.
The boring bars are made from M35 5% cobalt high speed steel.
The shanks are held to 0.000 to -0.0005″ from the nominal diameter.
The stand may vary from that shown in the photo.

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