Dunham Tool

If you have an original workholding idea which others may need, we are interested in evaluating your idea! Your idea may be produced and sold by The Dunham Tool Company under an attractive Award or Royalty Agreement that will bring you income for years to come. Even with a very good tool idea you need someone who can manufacture and sell the tool.

Dunham Tool Offers Machinist A Wide Variety of Collet Options For Use In Their Work Holding And Tool Holding Needs. The Line Of Dunham Expanding Collets, First Patented In 1958, Are Proudly Manufactured At the Dunham Tool Facility In Clarinda, IA USA. These Internal Holding Collets Are Available In 5C, 16C, And 3J Options to Fit Your Needs. In Addition, Dunham Also Stocks A Large Selection of 5C Collets and R8 Collets, Typically Available To Ship Directly From Stock.

Dunham Tool manufactures high quality 5C, 16C, and 3J Expanding Collets along with other special sizes with diameter capacities of 1/4" to 6" and expandable lengths from 1" to 3". These Expanding Collets, patented in 1958, are machinable by the customer. The Dunham Tool expanding collet is designed for use with standard air collet or hydraulic cylinders or other collet fixtures.

Dunham Tool precision R8 Collets are available in both inch and metric sizes. R8 Collets in round sizes are 1/16" to 7/8" in 1/32" increments, or 3mm to 22mm in 1mm increments. Our R8 Collets allow for more rapid tool changes, and provide an inexpensive and accurate tool holding method. R8 Collets are typically used as holders for tool shanks, and are used in Dunham Tool R8 fixtures and R8 precision spindles.

Dunham Tool manufactures high quality lathe bar pullers and bar puller kits to enhance bar stock puller applications. Dunham bar pullers are most frequently used as a CNC bar puller, but are also used in 'pick and place' applications. These tools are sometimes referred to as pull up bars. The Dunham bar puller line of low cost bar pull grippers for CNC Lathes are available from 1/8" to 2" diameters in 1/16" increments, from 2" to 2 1/2" diameters in 1/8" increments, and from 3MM to 34MM in 1MM increments.