I have seen some small carbide shank boring bars for sale on ebay and they use the size 3 inserts, and failed to find a source of inserts before buying the tool. I had to pay £50 for a box if inserts for the Garant 6mm solid carbide shank boring bar as they are propriety fit, and a similar size. However, the quality is outstanding for any metal which is some consolation.
I have bought from Jenneys Tools via their ebay site several times and can recommend them.
That insecure website that SOD mentioned might simply be non https, and the browser security might be set to warn against it. Try visiting the Lathes UK site, that always get a warning when I visit for that reason.
Edited By old mart on 11/12/2022 15:01:17
Edited By old mart on 11/12/2022 15:07:18