SK collet

CNC

Overview
KR precision collets are designed for CNC tool holding where repeatable concentricity and extended service life under frequent tool changes are required. Special material selection and heat treatment increase wear resistance. PP‑grade variants limit radial runout to ≤ 1 μm measured at four tool diameters while providing strong clamping force for secure tool retention.

Key features

• Strong clamping force for reliable CNC tool holding
• PP‑grade radial runout ≤ 1 μm (measured at four tool diameters)
• Improved wear resistance via special materials and heat treatment
• Engineered to maintain accuracy after repeated tool changes
• Better wear performance than SK collets at equivalent locking force

Applications
Suitable for precision milling, drilling, engraving and other CNC machining operations that demand low radial runout, repeatable accuracy and long tool‑holder life.

Technical data and dimensions
Technical data, dimensional drawings and specification tables are available on the product page for selection and verification.

Technical specifications

• Series: KR precision collets
• Accuracy: PP‑grade available (radial runout ≤ 1 μm at four tool diameters)
• Clamping: high clamping force suitable for frequent tool changes
• Materials & treatment: specially selected materials and heat treatment to enhance wear resistance
• Comparative performance: superior wear resistance vs SK collets at equal locking force