Collet FORTIS ER32 Ø14–13 DIN6499 for tool holding and milling spindle

FORTIS ER32 collet DIN6499 with a nominal clamping range of Ø14–13 is designed for secure retention of tool shanks in ER32 tool holders and milling spindles. The collet provides a concentric grip that ensures radial runout control and repeatable positioning for end mills, drills and reamers used in CNC milling and general machining operations. Manufactured to DIN6499 dimensions, the collet interfaces with standard ER32 nuts and holders to form a compact clamping system for workshop and production environments.

Advantages

This ER32 collet delivers precise clamping over the specified diameter range, offering consistent concentricity and reliable repeatability between tool changes. The DIN6499 design ensures compatibility with widely used ER32 tool holders and milling spindles, simplifying tool setup and reducing downtime. The collet’s stepped slits and material properties provide uniform radial pressure on the tool shank to minimize runout and improve machining accuracy.

Suitable for

• Clamping end mills, drills and reamers with shank diameters within Ø14–13 range
• ER32 tool holders and ER32 milling spindles in CNC machines
• Precision machining tasks requiring repeatable tool positioning and low radial runout
• General workshop use where standard ER32 collet systems are implemented

Key specifications

• Collet standard: DIN6499
• Clamping range: Ø14–13 (nominal)
• Collet type: ER32
• Intended use: Tool shank clamping in ER32 holders and milling spindles
• Function: Provides concentric grip and repeatable positioning for rotating tools

How to use

Insert the collet into a compatible ER32 nut or directly into the ER32 tool holder according to the holder manufacturer’s instructions. Place the tool shank into the collet, ensuring the shank is fully seated and aligned. Tighten the nut to the specified torque for the tool holder to compress the collet and secure the tool. Verify concentricity and runout with appropriate measurement tools before machining. Follow machine and tooling safety procedures during installation and operation.

Usage recommendations

Use the collet within its specified Ø14–13 clamping range and pair it with ER32 nuts and holders that conform to DIN6499 dimensions. Regularly inspect the collet for wear, corrosion or damage and replace if deformation or excessive runout is detected. Apply correct tightening torque and clean both collet and holder contact surfaces to maintain concentricity and extend service life.