This adapter is for a 3" 3-Jaw chuck such as LittleMachineShop.com PN 1187.
*NOTE* These adapters require machining on the lathe on which they will be used.
Instructions are included for final turning of the registrati...

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This adapter is for a 3" 3-Jaw chuck such as LittleMachineShop.com PN 1187.
*NOTE* These adapters require machining on the lathe on which they will be used.
Instructions are included for final turning of the registration diameter on your lathe to insure perfect concentricity.

  • Cast iron lathe chuck backplate adapter fits lathes with 1/2"-20 spindle nose thread
  • Adapter is 3" (80 mm) in diameter and has three chuck mounting holes for a 3-jaw chuck
  • For 3" 3-jaw chucks
  • Includes instructions for final turning of the registration diameter to insure concentricity

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