The TRUE Cornerstone of Precision

The tool holder cone is a crucial component in your precision workflow, yet it might be the one you think about the least.

Is your tool holder helping or hurting your machine and your job? Your “cost-effective” tool cone could be a ticking time bomb.

The True Cost of a Low-Quality Cone

Hidden costs are a direct hit to your bottom line and depend on the quality of the cone you use. They include:

• Tool chatter
• Poor finishes
• Premature spindle wear

Two Philosophies: Core Material vs. Coating

STS Line

Material & Durability

• Solid, certified stainless steel alloy
• Stainless to the core
• Same hardness on surface (54 HRC) and core (52-54 HRC)
• Can be rectified
• No special maintenance required

Dimensional Accuracy

• h6 shaft centering tolerance ($0.016$ mm)
• h6 pull studs centering tolerance ($0.016$ mm)
• Rectified pull stud coupling plane ($0.003$ mm)

Pull Stud Reliability

• 100% of production batches are tested
• Break load exceeds 26,000 N

Black Oxide

Material & Durability

• A thin surface treatment on standard steel
• Stainless only until the “coating” gets damaged
• Very hard surface (up to 70 HRC), very soft core (28-32 HRC)
• Cannot be rectified after the treatment
• Requires maintenance to avoid damaging the surface

Dimensional Accuracy

• h7-h8 shaft centering tolerance ($0.021$ mm)
• h8 pull studs centering tolerance ($0.030$ mm)
• Pull stud coupling plane is not rectified

Pull Stud Reliability

• Tested at lower than 12,000 N

Recap: The Value of Investing

Ready to make precision your new standard?

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