Donald Holt, Founder (1934-2004) Assembling a Beltwinder for artificial kidney manufacturing, 1970.
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Diamond Tool and Die is where
an owner makes every part.
Diamond Tool and Die was started in 1967 by its founder Donald Gene Holt. It began as a one-man job shop in Donald’s home garage. In 1968, Diamond Tool and Die incorporated and moved into its new home at 508 29th Avenue. At that time it was only 2,500 square foot wooden building.
In the early 1970’s, Diamond Tool and Die helped design and manufacture artificial kidney dialysis machines and support equipment. Donald also designed and patented his revolutionary quick change tooling system known as Immotion. Throughout the 70’s and 80’s Immotion was manufactured and sold all over the world by Diamond Tool and Die. In the early 1980’s, Diamond Tool and Die had built its first of six buildings and had grown to fifteen employees. DTD introduced a gas purifying product line known as LabClear™ and began a tooling distributing company known as The Tool Crib. In the late 80s DTD merged with another machine shop known as Apsco Manufacturing, became an ESOP (Employee Stock Ownership Plan), and introduced a moisture trap product line known as OxiClear™.
In 1993 Donald Holt’s son, Darrell Holt, and Dan Welter became President and Vice President of the Corporation. The company soon became certified to manufacture nuclear fuel rod components and became a tailored ISO 9002 DoD (Department of Defense) contractor. Today, Diamond Tool and Die is housed in a 30,000 square foot facility. There are over thirty-five employees/owners and they have over 75 machines on the floor (CNC/manual Mills & Lathes; EDMs, and CMMs). There is a full time Inspector and Chemical Engineer on site. DTD has in house Accounting, Programming, Job Costing, Quoting, Material Tracking, and Shipping and Receiving Departments. As a full service machine shop, DTD can assist with outside services in addition to our in-house machining of metals & plastics, finishing and inspection services. DTD has both day and night shifts, and Saturdays, so that they can assist with rush jobs and emergency services.
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