Manufactured from high speed tool steel, these cutters replace the cutters that came with your Sinclair Neck Turning Tool, in the very rare case that you wear one out. 30° cutter is a direct replacement to the cutter provided with your Sinclair Neck Turning Tool and a 40° cutter is also available for turning necks on Improved cartridges. Fits all Sinclair Neck Turning Tools.
Sinclair, Issue:5B, Page:017