ISO collet chuck

ERmillingdrilling

Overview
The ISO-ER is positioned as the versatile option within the ISO interface family. Its ER collet format supports a broad tool-diameter range and enables fast tool changes for drilling, reaming, tapping and milling, prioritizing operational flexibility over maximum torque or minimal collet deformation.

Key points

• Intended use: drilling, reaming, tapping and milling.
• Collet format: ER collet for wide tool-diameter coverage.
• Design focus: general-purpose versatility and quick tool changes rather than maximizing torque.

Performance

• Tool holder run-out (radial): ≤ 2 μm.
• Combined run-out (total): ≤ 5 μm.
• Dynamic balancing grade: ≤ G1.

Applications

• Drilling
• Reaming
• Tapping
• Milling

Technical data and diagrams
Technical data and dimensional diagrams are available on the product page as images showing performance figures and mounting dimensions.

Characteristics / technical specifications

• Interface family: ISO.
• Series / model: ISO-ER.
• Collet system: ER collet format.
• Tool holder run-out: ≤ 2 μm.
• Combined run-out: ≤ 5 μm.
• Dynamic balancing grade: ≤ G1.
• Design intent: general-purpose holder covering a wide tooling range with fast tool changes.