This smooth working reciprocal drill is 11 ¼ inches long. The three-jaw chuck accepts twist drill bits up to 3/8” diameter. The bulbous central driver moves up and down, continuously turning the drill bit clockwise to drill through most metals, including steel. There is a lock position to be used with tightening or loosening the bit in the chuck. This model was made by North Bros beginning in 1902. This example is marked with an 1897 patent date and and the 1902 one, making it an early example. Except a small patch of corrosion in the plating of the moving handle, it is in perfect condition, with otherwise complete shiny nickel plating and a perfect tropical hardwood handle. It would be interesting to speculate what the cost of this 100 year old tool would be today, could it be reproduced. Fine.