This is an assortment of boring bars, some HSS steel but most are carbide. I will try to explain the different lots.First off is the Boring bar tool holder that I made myself. Its for a Hardinge speed lathe that just slides into the compound and hand tightens. It holds 3/8" and 1/2" diameter bars.
This is quick and easy to use. Ok, from the main photo on the upper left in the brown wooden box are solid carbide, small boring bars, I don't believe any of these have ever been used. The orange holder is holding carbide faced boring bars, I have only used 2 of these and they are still very sharp. In the blue holder these are all HSS and all gently used and can be easily re sharpened.And on the bottom are a variety of boring/ threading tools. The lower right shows an Aloris BL1 bar which holds a replaceable carbide insert of which 8 inserts are included. The item "24 lathe boring bars and tool holder" is in sale since Thursday, July 16, 2020. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Supplies\Turning Tools". The seller is "bob2661" and is located in Rochester, New York. This item can be shipped to United States.