This is a nice group of rarely seen auger bits in 5 different sizes 4,5,6,8,10/16ths . Basically a Irwin type, with double spurs and cutting edges, with a more course type lead screw. Each is marked "PINEKNOT", above a fancy logo, and in the lower section of the logo is marked "INO. W. PRICE". Some minor taper shank end dings otherwise, sharp, ready to use, no rust, in nice shape. We have several antique auger bits for sale at this website. Several complete sets, and some partial sets like this one or singles.