11-26-2015, 11:01 AM
Also, what size range are these chucks and are they the "genuine article" made in USA (Jacobs) and Germany (Albrecht) chucks or the cheap knock-offs? Have you mounted the chucks on quality arbors or "import" quality ones?
Lastly, don't overthink this. If the drills being used were high performance solid carbide you need 0.0002" runout. With HSS jobber length drills, anything under .005" or so should be fine.
Lastly, don't overthink this. If the drills being used were high performance solid carbide you need 0.0002" runout. With HSS jobber length drills, anything under .005" or so should be fine.