Up for sale is a vintage UNION TWIST DRILL CO. countersink steel bit set in a wooden box. This set includes 21-1/2 No 1-5 countersinks made of high-speed steel, suitable for various drilling tasks. The brand of this item is UNION TWIST DRILL CO. and it falls under the category of metalworking supplies in the CNC, metalworking and manufacturing industry.

The countersink material used for this set is of high quality, ensuring durability and precision in drilling. This item is perfect for those who are looking for a reliable and vintage addition to their metalworking tools collection. Don't hesitate to purchase this UNION TWIST DRILL CO. countersink set and add it to your toolbox today!