Jacobs® 2948D Self-Ejecting T-Handle Chuck Key, 5/16 in Pilot, S-K3C Key Number, Soft Steel
Item #BC150767

Jacobs® Chuck Key, Self-Ejecting, T-Handle, 5/16 in Pilot Dia, Key Number: S-K3C, For Use With: 3, 34 Series and 14N Chucks, Soft Steel
  • Soft steel handles limit the potential for dangerous fracturing under excessive load
  • Never apply extensions, pliers, wrenches or 'cheaters' of any kind to chuck key handles
  • Do not subject chuck key handles to hammer or other impact blows
  • Precision crafted for an exact fit
  • 11 Teeth
  • Self ejecting models with spring loaded ejectors ensure key disengagement after tightening
MaterialSoft Steel
TypeSelf-Ejecting, T-Handle
Suitable For Use With3, 34 Series and 14N Chucks
Pilot Diameter5/16 in
Key NumberS-K3C
Warranty1 Year