Artifacts Record
Images
Metadata
Object Name |
Auger |
Description |
AUGER: This auger bit tool would have been chucked into a tool called a bit brace and turned by hand. There's appearance of rust on some spot of this auger bit 19 1/2" length.This auger bit has been invented by Russell Jennings in 1855. It has a double twist, a screw point to anchor it, and spurs to cut a clean hole. The tip of this auger helps to keep the bit centred so that it can accurately drill in a straight line. This auger bit tips is produced with spurs and a guide screw. This guide screws draw an auger bit through a wooden workpiece as the bit turns, meaning the user does not have to exert a lot of downward force to bore a hole. Spurs, also known as 'nibs', are responsible for cutting around the outer perimeter of the hole before the lips begin boring the rest of it. This prevents splintering as the bit penetrates the surface of the wood, and keeps the edges of the borehole neat and smooth. The number of lips on this auger bit is two so we have double twist. The flighting of the auger bit is the spiral twist, or twists, through which the waste material escapes. The Flighting on this auger bit is double-twist. |
Catalog Number |
1999.4.46 |
Dimensions |
W-1.5 L-19.5 inches |