Specification Part Number 3” Standard Pilot Drill 5600-1008-03 4” Standard Pilot Drill 5600-1008-04 6” Standard Pilot Drill 5600-1008-06 8” Standard Pilot Drill 5600-1008-08 10” Standard Pilot Drill 5600-1008-10 12” Standard Pilot Drill 5600-1008-12 14” Standard Pilot Drill 5600-1008-14 16” Standard Pilot