Precision Boring Co

Custom Component Machining

Precision Boring Company | Manor Industries

Precision Boring Company and Manor Industries are your total solution for all of your custom press parts, machining, and grinding needs. We offer a full range of services from our facilities in Clinton Township, Michigan. For almost 80 years Precision Boring Company has specialized in large diameter turning, grinding, boring, and inspection of complex component parts. For over 55 years Manor Industries has been reverse engineering stamping press parts. Our business is built on open communication, superior technical support, professional workmanship, and on time delivery. It’s what sets us apart in an industry that typically experiences long lead times in subcontract component machining. We love serving our customers well and we can’t wait to meet your needs and exceed your expectations.

Family owned and operated for three generations, Precision Boring Company and Manor Industries offer quality American made products by the best machinists in Detroit.

Our Services

Replacement Press Parts

Press Parts

OEM alternative for all major brands

Precision Component Machining

Component Machining

Milling, turning, fabrication, & measuring

Precision Grinding


Large OD/ID grinding, large face capacity grinding, tapers, faces

Large CNC Floor MIll

CNC Machining

Large 5-axis CNC floor mill, boring mills with CNC rotary table

5 Reasons to Work with Us

Number One


We’re never satisfied when it comes to delivering a quality product. That’s why we’ve implemented a robust QA system certified to ISO9001:2008 requirements. All of our work is done in our climate controlled facility with state of the art equipment, including accuracy verified by independent laser inspection.

Number Two


We’ve assembled the best team of engineering, machining, and technical personnel in Detroit. By handling all of our work in-house, we’re able to provide comprehensive solutions for your most complex needs, including secondary processes after machining. These services make us your one stop shop for your entire project.

Number Three


A good reputation isn’t earned overnight. Precision Boring Company has served customers for almost 80 years, while sister company Manor Industries has been in business for nearly 60 years. Both Precision and Manor have provided customers across the United States and around the world with products that meet needs and exceed expectations.

Number Four


Subcontract component machining is notorious for long lead times. Our innovative approach offers you a low risk solution that shortens those lead times. That means that you get the part you need, on-time, as promised. Throughout the entire project, you’ll have unlimited access to our engineering and technical support team through our open communication policy.

Number Five

Made in Detroit

Detroit has long been the heart of American industrial innovation. Since 1956, our sister company Manor Industries has pioneered reverse engineering of press parts making us an industry leader. Now in our third generation of family ownership, since 1937 Precision Boring Company has brought innovation and ingenuity to the precision component industry while creating jobs and opportunity right here in our community.


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