HSK-A tool holder

colletfor finishingdrilling

Overview
The HSKA-KR tool holder is designed for machining operations where long-term clamping stability is prioritized over the widest available diameter range. The short HSK-A interface supports rapid tool change cycles, while the KR collet system is engineered for controlled deformation, wear resistance and repeatable clamping precision. It is intended for high-speed cutting applications that require stable retention over extended tool life.

Key characteristics

• Interface: HSK-A with KR collets
• Short HSK-A design for fast tool changes
• KR collets engineered for low deformation and wear resistance
• Designed for long-term clamping stability and precision retention
• Suitable for high-speed milling, drilling and finishing operations

Technical data summary

• Dynamic balancing grade: ≤G1
• Tool holder run-out accuracy: ≤2 μm
• Combined run-out accuracy: ≤5 μm

Applications / Specifications

• Model family: HSKA-KR
• Interface type: HSK-A (short design)
• Collet type: KR (wear-resistant, controlled deformation)
• Typical use: high-speed cutting where clamping stability over time is critical
• Primary design goals: low deformation, stable clamping, wear resistance, repeatable precision, rapid tool change