Finish and test the 4 facet drill grinding jig 

Great outcome Alan. Excellent build quality as always. Cheers Nobby

Thanks for sharing 👍

brilliant.

Thanks. Nice jig too! Taking the back edges off drills has been used under different circumstances, I think on thin plate/sheet, with differing pressure. I wonder if an extra 20ish percent speed is worth risking a fragile tip for. How about double facet at different gradients next.

Interessant! Vielen Dank.

Hello from Aus. How are you indexing the flutes? I can't see any finger.