5/16" (Approx 8mm) - Filepecker FP-100 Drill Bit - 5.35" Overall Length - 4" Capacity - 1 ea. - DBF-100-516

These style F premium hollow-spindle drill bits are designed specifically for your Filepecker FP-100 Paper Drill.  These bits are a consumable item, and should be either re-sharpened or replaced periodically.