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3" 3 Jaw Precision Self Centering Chuck with 5C Arbor

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More Information
Mfg SKU #202-5414
Lathe Chuck CategorySelf Centering Scroll Chucks
BrandShars Tool
chuck diameter3
shank size5C
Number of Jaws3
Maximum RPM4000
max capacity3.15
min capacity0.179



  • 5c arbor allow to use in headstock to replace typical lathe chuck for more rigid clamping in small part application
  • Self Centering lathe chuck will open and close all 3 jaws simultaneously


  • Semi-steel chuck body made from high quality cast iron

  • 3 pinion available around the chuck body to allow easy access for the lathe chuck key to open or close the jaws

  • Each pinion is ground and hardened to HRC 43
  • Both sides of the jaw teeth and guides are ground and hardened to HRC 58-62


  • Each set of jaws are serialized in their own set


  • A serialized set of jaws are then finished, ground, and lapped on their designated chuck body which will be the same chuck body on the final assembly to achieve a greater accuracy

  • Before assembling the jaws to its designated chuck body, the jaws finish machining is performed on a close tolerance state of the art CNC machine from Japan

  • The scroll plate's thread flank are ground on both sides to achieve tighter contact with the master jaw
  • Each chuck has gone through rigorous accuracy and repeatability inspection by clamping and jamming multiple random testing rods or rings
  • Accuracy is maintained for the entire clamping range
Clamping Range:


  • Internal Jaw:
    • Clamping Range A-A1: 0.079-0.866"
    • Jamming Range B-B1: 0.984-2.756"


  • External Jaw
    • Clamping Range C-C1: 0.866-2.480"

What’s Included

  • One set of inside jaws (3 pcs per set) for internal holding
  • One set of outside jaws (3 pcs per set) for external holding
  • Lathe chuck key