Customer-Centered Centerless Grinding

Barstock

Centerless grinding, straightening, burnishing and cutting

Processed even more efficiently when you begin with our high-quality inventory.

Parts

High-speed throughfeed and infeed precision grinding

From one-piece-prototypes to one-million piece orders.

Additional Services

Plus, the key services you need to keep your mind off the grind.

Supply chain management, inventory, delivery, certifications, sourcing and PPAP.

Whatever the challenge.

Together, we’ll customize a process that meets both your deadlines and our high quality standards. Just say the word.
Our partners and suppliers are like a part of our own business. We trust them. That means we have the relationship to speed jobs along when you’re in a rush.
We are ISO 9001:2015 registered and take extra care to maintain 6 Sigma quality on every major project.
As a small, family-owned business, we see the value in every project. If your job requires extra attention, our leadership team will help find the best way to see it through.

Our Inventory

For fast and consistent results, many clients source from our premium in-house inventory.

Available pre-straightened, pre-ground or quick-to-grind.

We’re focused on the quality services you need today. And every day.

So you can stay focused on what comes next.

For everything else, we turn to our partners.

Guaranteeing that you only pay for the expertise you need. Nothing more. Nothing less.

As seen on Manufacturing Marvels

Welcome to our business.
Welcome to our family.

Our Values

“My son and I make the extra effort to form trust-filled, long-lasting relationships with our partners. So that, someday, maybe he’ll be as lucky as I am – and have the chance to work here with his son.”
- Robert G. Rock Jr., President

Know when to stock up with Certified.

Each month, we’ll update you on the changing price of materials, so you can decide the best time to buy. Even if you’re not our customer.
“Certified Grinding is the best grinding shop that I have ever worked with, bar none.”
— SDJ Machine