Pen Makers HSS Drill Bit Set - 6 Piece

Specially designed for pen turners, these HSS bits are precision ground to limit exit chip out and provide clean entry when boring for brass tube insertion. Excellent chip extraction is achieved with deeply ground flutes. Minimize blank loss as a result of extremely sharp lands and flutes. Shanks measure in at 7/16" even with bigger bits such as 31/64" and 11mm or larger. This set comes with bits designed to make the most popular kits. Contains one each 7mm, 10mm, 11mm, 27/64", 3/8" as well as letter "O" bits.