Colt Letter "O" FCE Pen Blank Drill Bit

Colt pen blank bits combine a unique cutting head with a parabolic flute design that together prevent breakout on both entrance and exit, even on acrylics and the hardest of woods, and prevent chips from wedging between the flute and the side of the hole. Cleaner holes get drilled much faster and with less effort. The relative ease with which the bit cuts not only speeds the work, but also preserves the bit's sharpness for hundreds of more holes than alternative products.