With double-radius cutters, geometry is no longer a differentiating factor. It’s a given. The difference is made elsewhere: in chip space, runout, production consistency and ultimately in cost and tool life. Or, put more clearly: it’s not “Can the cutter be ground?” that matters. The real question is: “How well does the tool perform for the customer?”

Where money is lost today.

Double-radius cutters are high-performance standard tools. Catalog-ready. Suitable for series production. Industrially established. The challenge is not achieving the geometry. The challenge is making performance reproducible. That’s exactly where the market falls short. Runout, chip space quality, process stability - everything is known, everything is documented. And yet, actual tool performance still varies. The reason is simple: the focus is too often on grinding the cutter, and not enough on how the double-radius cutter performs in use. Money isn’t lost in grinding. Money is lost in the production process on the customer’s machine.

The Radical approach

The Multigrind® Radical addresses exactly this point. Not the form, but the function. Tool performance is created in the chip space. And economic efficiency is created in the process system behind it. Both belong together. The result is not a feature bingo, but a clear consequence: With the same drawing, the better cutter is produced. And more cost-effectively, too.

Why the chip space matters

The chip space is not a secondary condition. It is the functional reality of the tool. This is where it is decided how the cutter actually performs: how chips flow, how much heat is generated, and how stable the process runs. This is particularly critical for double-radius cutters. Two radii must interact precisely along the entire flute. Even the smallest deviations change the behavior in the cut. Not visible in the geometry but measurable in the result.

The difference is driven by calculation.

With Multigrind® Horizon, the chip space is not approximated—it is calculated. Constantly. Across the entire contour. Without local distortions. It may seem like a detail, but it is the decisive lever. Because this is what drives process performance: smoother running, less friction, reduced heat input, and more stable conditions. And from that follows what matters economically: tool life, reproducibility, and reliability.

Why automation is the real differentiator

The difference becomes visible in the process. It’s not the ability to grind that matters. It’s the degree of autonomy. The Multigrind® Radical is consistently designed as a system—not a standalone machine, but an end‑to‑end process: from planning to feedback. Without integration breaks. Without external interface risks. This becomes evident in operation: stable processes, flexible response to variants, no retooling marathon when diameters or orders change. Automation is not an add-on. Automation is the foundation of economic efficiency.

Where productivity is actually created

The machining time remains the same. The difference is created alongside it. Non-productive time determines output. And this is exactly where the Radical comes in: tool changes, measurement cycles, workflows—everything optimized, everything geared toward throughput. The effect is measurable. Depending on the application, productivity gains of 20 to 30 percent can be achieved. Not theoretical, but based on real processes. The more complex the workflow, the greater the impact.

The underestimated lever: standards instead of custom solutions

Another point is often overlooked. Double-radius cutter geometries are frequently ground using special wheels. That costs time, money, and flexibility. With the Multigrind® Radical, we deliberately take a different approach: standard tools instead of special solutions. This reduces costs. And it reduces dependencies. And it creates the ability to respond—especially when variants change or lead times become a risk.

What ultimately matters

The impact becomes visible where it matters: in a more stable process, longer tool life, reproducible results, and higher output per footprint. Not as an isolated effect—but as an interaction of all factors.