Machined Parts

With over half a century of experience in machining, we have seen a lot and are ready to quote your inquiries today. We provide complete parts or value-added machining. We are a small, family operated business full of skilled and experienced machinists and we work with our customers to make sure that their needs are met, and their expectations are exceeded. Contact us today so we can help you with your next project.


Through a variety of manual and CNC machines, we can manufacture parts out of plate, pipe, tubing, and round, flat, or hex bar. We specialize in machining most types of internal and external threads.

Our capabilities include:

  • CNC Turning Centers: 1/16” to 40” diameter, up to 10’
  • Manual Lathes:
    • 1/16” to 40” diameter – 30’ long
    • 38-48” diameter – 20’ long
    • 48” to 66” diameter – 12″ long
  • CNC Milling Centers: X=43” and Y=32”
  • Manual Milling – Inquire
  • Plate Grinding: 36 Diameter Table
  • Round Grinding: Up to 10” diameter, up to 60” long


For a look at our inventory of qualified and commercial grade material, see here. Additionally, we can source most material as needed through partnership with our suppliers and can machine customer-supplied material on demand.

“Thanks for being a partner for many years… Colonial has provided and advised us of any stub end needs for welding fittings.”

“Great company and great people.”

“We appreciate the relationship we have with Colonial.”

“You have always been very helpful and timely with your responses.”

“Great company and super people. Been doing business with Colonial Machine for over 40 years. Very knowledgeable.”

“Overall the customer service is very good.”

“It is a pleasure to do business with Colonial Machine.”

“Colonial Machine is a preferred partner for us as they are a great company to work with.”

“I have been working with Colonial Machine for the past 13 years and they are a very knowledgeable machine shop that can produce quality parts.”

“Honestly one of the best companies that I’ve dealt with in my 44 years in the business.”

“Colonial is one of our favorite vendors!”

“Customer service responds promptly and very courteous to work with.”