Thank you so much for these videos. What kind of extension is that that you use? All of the extensions I see are for a 1/4" shank, which is too small for my auger bits.
They are auger bit extensions. You can find them on ebay. www.ebay.com/itm/Stanley-No-180-18-IN-Bit-Brace-or-Auger-Bit-18-Extension/174166316102?hash=item288d1f1446:g:jSoAAOSwOXRd0tCz