4-jaw chucks are used for holding odd shaped pieces or where zero tolerance is required. each jaw moves independently. This 4-jaw chuck has a semi-steel body and hardened reversible jaws. Requires mounting plate. Note the mounting holes through the front of the chuck. This is because each jaw moves independently and there is no scroll in the middle. Through hole: 1"

• Steel and semi-steel body
• Medium duty and heavy duty 4-jaw independent chucks are designed to grip round or odd shaped work
• Solid jaws are made of high quality carbon steel, then hardened
• 4-Jaw semi-steel body lathe chucks come with hard solid reversible jaws

1 sets of jaws, a wrench ,and mounting screws

Overall Dimension: 4" x 2-1/8"

1" Shaft hole

Max Jaw Opening 3"

Back Plate not included.