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About Us


Special Parts Manufacturing Inc., formally known as Chaffin Manufacturing, began in 1978 in Atwood, Oklahoma. Kenny McDonald purchased Special Parts Manufacturing in 2012.

Under the direction of Kenny McDonald, Special Parts Manufacturing has added
five turning centers, two computerized marking machines, new drafting and
operating software, and an NC Centerless Grinder. With a vision for the future he
also added a Maxiem 1530 Jet Machining Center along with a Baykal-fabline
1254-40 press brake to be able to expand into the fabrication business.

Special Parts Manufacturing has also implemented a quality management system
and are currently ISO 9001:2015 certified.

Our standards are high. So high in fact, we're in a league of our own, moving our entire industry forward. Special Parts Manufacturing has become synonymous with the highest quality craftsmanship.

No one ever complained about having their work executed perfectly.


View ISO  9001:2015

It's old fashioned now, but we do what we say we're going to do. Plain and simple. Our word is our  bond, and that applies to our deadlines, as well.


No one ever complained that we had too much integrity.



Our machining services focus on manufacturing quality parts that will enhance the performance of your business.  By incorporating industry best practices into our business processes and management strategies, we stay ahead of the competition and are better able to serve our customers.


Leadership, dedication, and quality


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There are leaders, and then there's everyone else. At Special Parts Manufacturing, we take immense pride in driving the industry standards forward, focusing on efficiency, quality, and safety.

No one ever complained about hiring the best.


OMAX Waterjet
ISO 9001:2015




Our business focuses on using the latest technologies available with regard to tooling, cutting, and programming, in order to improve our processes to insure that our business can operate in the most cost effective manner, allowing us to keep costs down and pass those savings on to our customer.