Of all old tools I find hole making and screw driving tools are are my most favorite. Braces, geared drills, bow , pump, Archimedean and strap drills give the collector a rich variety of items to seek, possess or sometimes just admire from afar. There are hundreds of different drill and brace attachments from simple bits and countersinks to washer cutters and hollow augers. Screwdrivers afford the same variety with a multitude of styles and manufacturing patterns. These tools and attachments were valuable to a developing country allowing their users to perform tasks from hogging waste for the large mortises used in timber framing buildings to drilling small holes to produce the timepieces that ran the railroads. Some are mysteries of origin, simple relics of necessity created by machinists and blacksmiths for their personal use. Others are the patented inventions of the practical, creative mechanics that spurred the development of industry and manufacturing in the United States and around the world. Some of these knights of innovation held scores of patents developed through decades of inspiration.