Since 1958, Dunham Tool has been designing and manufacturing innovative, high quality workholding, toolholding and spindle solutions for manufacturing industries worldwide. In 1959, Russell Dunham, our company's founder, received the original patent for the Dunham 5c expanding collet. Located in the United States in the town of Bethel, Connecticut, Dunham Tool actively participated for many years in the Association for Manufacturing Technology (AMT), the US industry trade group for machine tool builders, as well as the Connecticut Business and Industry Association.

Dunham Tool has been designing and manufacturing innovative products for over 40 years. Our product list includes;

  • Expanding Collets

  • 5C Collets

  • R8 Collets

  • Expanding Mandrels

  • Dead Stop Step Chucks

  • Air Collet Closers
  • Precision Lathes

  • High Speed Spindles

  • 50M Spindle Headstocks

  • Air Collet Chucks

  • CNC Collet Chucks

  • CNC Lathe Bar Pullers

Please call 800-222-9607 or send an email with your questions and comments.

We look forward to working with you.

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