These bits drill the perfect holes for our Churchill Pen Kits (#28448, #21447, each sold separately). The 33/64" bit is for the cap, and the 31/64" bit is for the pen barrel. Both bits are machined to precise tolerances for a perfect fit to your pen hardware. Though they are similar in size, the bits look very different for easy identification.
Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.