The Definitive Guide to milling machines
[nine] It's a form of hand crank drill that is made up of two sections as viewed in the picture. The brace, about the higher 50 percent, is where the user holds and turns it and on the reduced part could be the little bit. The little bit is interchangeable as bits use down. The auger utilizes a rotating helical screw much like the Archimedean screw