A CLEAN AND READY TO USE MORTISE MACHINE MORTISE BIT by the W.F. & John Barnes Company, Rockford, Illinois. This 1/2 inch size bit tapers from 7/16 inch to 1/2 inch at the shoulder above the squared section of the bit. W.F. & John Barnes were the world's largest produced of treadle operated machines. This bit is in excellent condition and could be put directly to use if you have a properly configured mortise machine. Length = 6.00 Inches (Ref. Id No.: 393848) [Free Shipping]