Keyless Chucks (Albrecht, 1908)
- .0015 runout typicical
- Some keyless can be wrench tightened.
Key Chucks, Jacob’s Chuck (A.I. Jacobs, 1902)
- .003 to .004 runout
Drill chucks are used to hold drill bits, not end mills. The force acting on the chuck
Not recommended for holding solid carbide drills. Diamond jaws are available for holding carbide drills.
See: Jacob’s Taper