Drill Bits
The right drill bit is what separates a clean pen blank drilling from a cracked one. We stock drill bits sized precisely for every pen kit family we carry — 7mm for slimlines, 10mm for Sierra-style, 10.5mm and 12.5mm for Jr II, and a full range of metric and fractional sizes for everything else. These aren't the bits you can always find at a hardware store. Match the bit to the kit you're turning, and your blank-drilling problems mostly disappear.