Tool Holding Systems - Clamping Nut for ISO / HSK Collet Chucks according to DIN 6499
Secure and precise collet clamping for tool holder systems
Fixing nut designed for the mounting and tightening of precision collets in ISO and HSK collet chucks compatible with DIN 6499. Its function is to secure the collet correctly inside the tool holder, providing stable tool clamping during machining.
Features
- Secure clamping: keeps the collet correctly positioned inside the tool holder.
- Compatibility: designed for ISO and HSK collet chuck systems compatible with DIN 6499.
- Precise mounting: contributes to stable tool holding during machining.
- Easy replacement: allows practical collet and tool changes during setup operations.
- Industrial use: suitable for tool holders used in CNC machinery and machining centres.
Application
Used for securing precision collets in ISO and HSK tool holders, ensuring correct mounting of cutters, drills and other cylindrical-shank tools.
Available in different sizes depending on the collet system and tool holder.
Fixing Nut Dimensions for ISO / HSK Collet Chucks

| RH CODE | F | D1 | D2 | M | L1 | ROTATION | --- | STOCK |
|---|---|---|---|---|---|---|---|---|
| Right-hand rotation | Fixing | Diameter-1 | Diameter-2 | Thread | Length-1 | Rotation | --- | Availability |
| HSK63F159P | ER32 | 3/20 | 50 | M40x1.5 | 22.5 | RH | --- | YES |
| HSK63F160P | ER32 | 3/25 | 50 | M40x1.5 | 22.5 | LH | --- | YES |

