About Us



DS Tool Technology, Inc. is a precision machine shop specializing in Aerospace and commercial manufacturing. We also provide FAA repair.


DS Tool Tech. was established in 2001 by Dale A. Swartz.

In 2003, DS Tool Tech. became a FAA certificated repair station for machining. We now repair Propellers, Horizontal Stabilizers, Air Cycle Machine and various other articles.

In 2016, DS Tool Tech. became ISO 9001:2008 and AS 9100C certificated. Our scope is to provide Precision Machined Parts for Aerospace, Aviation and Defense Industries. Almost all aerospace companies require this certification.

About the Owner:

Photo of DaleDale Swartz managed the machine shop at Hamilton Sundstrand, located within Long Beach Airport in California for 20 years. Helicopter Support, located in Connecticut, had a 30% rejection rate with the S76 Linear Actuator assemblies. Dale inspected a few parts and discovered they were buying out of spec parts. He approached them and asked if he could manufacture 10 parts free of charge. They tested the assemblies and 100% passed.

Helicopter Support gave DS Tool Tech. a PO on 9/10/01, a day before the World Trade Towers were destroyed on 9/11/01. He left Hamilton and started to set up the shop. Apparently it was the right decision because Hamilton Sundstrand in Long Beach closed a year later. DS Tool Tech. has manufactured these parts ever since; Helicopter Support is now Sikorsky.