Why This Grinding Demo Caught Toolmakers’ Attention

In cutting tool manufacturing, productivity gains often hinge on one critical factor: wheel performance. CDT’s EVO™ Hybrid Bond grinding wheels offer distinct advantages in demanding carbide grinding applications, but the real story is how they behave in high-accuracy tool development work. To see how these wheels perform on United Grinding’s Walter Helitronic Mini Plus, watch the video demonstration below, or read on for a deeper look at what makes this hybrid bond technology such a powerful solution for tool manufacturers.


Watch the video or read the article below to see why this grinding demo caught toolmakers’ attention.

CDT tests EVO Hybrid Bond on the Walter Mini Plus—see what the results reveal about performance in carbide tool production.

Hybrid Bond Performance on the Walter Helitronic Mini Plus

Shops faced with growing demands for speed and precision rely on grinding tools that can keep up, and that’s been the focus of CDT’s new product development with our EVO Hybrid Bond line. Harrison Sheldon, R&D Application Engineer at CDT, recently demonstrated this next-gen bond technology on the Walter Helitronic Mini Plus, showcasing the wheel’s capability in flute and tool grinding.

“We’re pretty excited about the new offerings from CDT, including our high-performance flute grinding and tool grinding products,” Harrison says. “We have our new EVO products on the machine demonstrating their great grinding abilities.”

For operations where stability, burn control, and form accuracy directly impact tool quality and cycle time, these EVO diamond wheels are a game changer. The demonstration highlighted several benefits a custom hybrid bond wheel can bring to cutting tool production.

Why Hybrid Bond Wheels Excel in Tool Grinding

EVO Hybrid Bond diamond grinding wheels combine the best characteristics of resin and metal bonds to create a wheel that is both fast-cutting and dimensionally stable. This makes them particularly well suited for flute grinding, secondary relief grinding, periphery, and other geometries where accuracy and wheel wear must stay tightly controlled.

1. Aggressive yet Controlled Cutting Action

EVO’s specially formulated bond allows superabrasive grains to cut freely while maintaining structural support. This balance delivers:

  • Higher feed rates

  • Lower grinding forces

  • Reduced cycle times

This is especially valuable in operations where standard resin bonds would wear too quickly or require frequent dressing.

2. Improved Thermal Performance

Tool steels, carbide blanks, and increasingly complex tool geometries place significant heat load into the grinding zone. The EVO wheel system with its copper core is built to dissipate heat efficiently, helping reduce:

  • Risk of burning

  • Micro-cracking

  • Thermal distortion

“These wheels really show strong, stable performance even at more aggressive speeds and feeds,” Harrison notes. “That’s a big advantage for customers trying to push productivity while keeping their tools cool and consistent.”

3. Extended Tool Life and Fewer Changeovers

Hybrid Bond diamond wheels maintain form longer than standard resin-bond wheels. This translates into:

  • Longer dressing intervals

  • Less wheel wear

  • More consistent part geometry

Whether this wheel is running in tool shops with high-mix, low-volume production or operations grinding carbide round tools around the clock, these improvements mean increased uptime and reduced consumable cost.

4. Ideal for High-Precision Machines

The Walter Helitronic Mini Plus is built for accuracy, and the performance of CDT’s Hybrid Bond diamond grinding wheels complements its capabilities. The wheel’s stability ensures that both form accuracy and flute consistency remain controlled throughout long runs or high-removal-rate passes.

best Applications for Hybrid Bond diamond grinding wheels

EVO Hybrid Bond diamond grinding wheels are a strong fit for a range of carbide and HSS tool manufacturing applications, including:

  • Flute grinding

  • Primary and secondary relief grinding

  • Step tool grinding

  • Chamfering and point thinning

  • End mill and drill production

Their ability to maintain shape while cutting aggressively makes them particularly effective in flute grinding where high-precision is essential for ultimate tool performance.

In addition to round tools, CDT also offers EVO Hybrid Bond periphery diamond wheels for carbide insert grinding, where consistent form retention and thermal stability are especially critical.

Top-of-the-line Diamond Grinding Wheels for All Major Tool Grinders

This demonstration was filmed at United Grinding’s Precision Summit last summer, where CDT showcased how its wheels perform on industry-leading equipment. CDT customizes grinding wheel solutions for all major machine OEMs—including United Grinding—to ensure customers get reliable, real-world performance across their production environments.

“We appreciate having the opportunity to test these wheels on the Walter Mini Plus. The results really show what this technology can do for tool manufacturers,” Harrison says. “It’s exciting to bring new products like EVO to the market with this level of performance.”

How to Get Hybrid Bond Grinding Wheels for Your Walter Mini Plus

If you work in cutting tool manufacturing and would like to explore EVO Hybrid Bond diamond grinding wheels for your flute grinding, relief grinding, or insert production process, reach out to our sales team or request a quote at cdtusa.net/hybrid-bond.

If you operate in another industry and need a specialized grinding solution, CDT’s product engineering team can work with you to develop a custom hybrid bond formulation tailored to your material, machine platform, and performance goals. Contact us to get the conversation started.


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