1030 Chuck 4 jaw 3 1/4″ dia.-3/4″-16thd


4 jaw 3 1/4″ dia. chuck 3/4-16 thd mount jaws adjusted independently (reversable heat treated steel jaws

SKU: 1030 Categories: ,


The 4 jaw chuck is the most versatile of all the chucks. It can hold round and square shaped materials. Unlike the 3 jaw chuck (self centering) each jaw on the 4 jaw chuck is adjusted independently of the others.

Some features of the 4 jaw chuck are

  • Hardened steel jaws with steps
  • Reversable range 1/8 to 3 1/4 inches
  • Jaws are independently adjusted in pairs
  • Setting a workpiece off center creates crankcase and cam shapes
  • Parts may be machined to run very true (this will require more time to center than a self centering 3 jaw chuck)


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