
HSK (hollow taper shanks)
DIN 69063-1 (ISO 12164-1) Form A Standard type for machining centres and milling machines. HSK for automatic tool change with gripper groove and index notch. Manual operation is via access hole in taper.
❷ ❶ ❷ ❼ ❻
❸ ❸
❾
❺ ❹ ❽ Term definitions of HSK-A interface for automatic tooling systems
| ❶ | Gripper groove: circular groove |
| ❷ | Index notch: sickle-shaped notch across gripper groove |
| ❸ | Keyway on collar: index notch or for attachment in tool magazine or grippers. |
| ❹ | Coding/identification: bore in collar for attachment of identification system (coding chip) |
| ❺ | Thread for coolant: for attachment of coolant supply set |
| ❻ | Keyway on taper shank: form closed torque transmission to spindle |
| ❼ | Radial bore in taper shank: necessary for manual clamping systems |
| ❽ | Clamping shoulder: circular chamfer for drawing in the tool |
| ❾ | Position of the tool edge of single-edged tools |