I realise this an old thread and I'm a newbie but I would love to work out how to sharpen twist bits. I know I can put an edge on just about anything else. By hand or with a gadget.
*VIDEO* Carl demonstrating the Spyderco Tri-angle Knife sharpener | Camperland News
But Twist bits, never.
When Grandad passed I picked up his collection of British twist bits. Rusted up so they have been in oil for near on 9years. But I still don't knoew how to sharpen them properly.
Carl