This video about auger manufacturing turned up after watching something else on YouTube, and led me to discover a fascinating series by Mr Hawley, a tool collector and, it would seem, a historian and film-maker. Worth a look for (re)discovering tools and techniques as they used to be.
Links to a video about Footprint Ltd and the manufacture of auger bits in Sheffield.
Rob
Edit – that’s a surprise, I didn’t think it would embed the video in the post.