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Precision ID Grinding

Asteroid Precision has been serving OEMs with industry-leading ID grinding services since 1966. Our experience, cutting-edge machinery, and unmatched experience have made us a leader in the precision grinding industry and led to countless relationships with clients in the aerospace, defense, hydraulic, and automotive spaces. 


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What is ID Grinding?

ID grinding — sometimes referred to as inside diameter grinding, inner diameter grinding, or bore grinding — is the process of finishing the inner surface of a workpiece. For any kind of component that has a bore or smooth interior surface, the use of a quality ID grinding machine and skilled operator is a must.

Other OD grinding machines simply are not built or designed to accomplish this task. There are various pieces of equipment that can successfully achieve the ID grind required for your components depending on the unique parameters of the job. These include:

  • A Hone
  • A Chucking Type Internal Grinder
  • A Planetary Internal Grinder

Whatever kind of ID grinding your components call for, the operators at Asteroid Precision are some of the most well-trained and high-performing operators in the world and can choose and execute the proper precision grinding required for the best results.

Our Experience

Asteroid Precision has over 50 years of experience in consistently creating components to exacting standards for our clients across some of the most demanding industries in the world. 
While equipment is a critical component, we truly owe our success to our trusted and proven machinists. To that end, we continually provide developmental training for our operators so they can remain at the top of their field when it comes to execution and best industry practices with the best machinery available. 

This commitment to excellence has earned us a reputation for reliability that we take pride in and our customers count on. When our customers place an order for precision grinding components, they can expect it to be done in the quoted time and to the highest quality standards, each and every time.


Our State-of-the-Art Equipment

Innovation, continuous improvement and quality are at the heart of Asteroid Precision's philosophy.

Providing unparalleled precision grinding for our clients means investing in the best ID grinding machinery available. A few of the machines that our elite machinist operate:

  • Okamoto ID Grinders
  • Studer S122 ID Grinders
  • Studer S110 ID Grinders
  • And More

In addition to using state-of-the-art machines to provide the most-accurate precision grinding available, we also make sure to use top-quality wheels, lubricants, and coolants to ensure the best results from every grind.

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