Manufacturing a 5mm ring and dot auger

The manufacturing stream in the creation of a 5mm ring and dot auger from the 3mm diameter spring steel blank (or mood), through forging and grinding and finally hardening, with a photo of a finished auger in a pump drill, the ring and dot auger is designed for use on bone and antler and even non ferrous metals, loads of tools on our website;- https://www.daegradtools.com/

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