12mm ER32 Spring Collet Chuck For CNC Milling And Lathe Machines, Beefy Grip, High Precision Clamping With 1mm Elastic Shrinkage, 40Cr Steel Tool Holder For Engraving, Milling, And Machining

Single Unit 12mm ER32 Spring Collet Chuck for CNC Milling
✔️ ER32-12 spring collet, 12 mm clamp, 1 mm shrinkage, 0.015 mm accuracy

This precision 12 mm ER32 spring collet chuck is built for CNC milling and lathe work. Made from 40Cr steel and heat treated for hardness, it delivers reliable clamping for engraving, milling, drilling, and jewelry applications.

✅ Clamping diameter: 12.0 mm (0.47"), elastic shrinkage: 1 mm
✅ Clamping range: 11-13 mm (0.43-0.51"), high precision ±0.015 mm
✅ Material: 40Cr steel with quenching and tempering for wear resistance
✅ Overall size: 33 mm OD × 40 mm height (1.3" × 1.57"), single unit

💡 What is a handy use for a 12 mm ER32 spring collet chuck in CNC milling and engraving?

In short, it provides secure tool holding for precise, repeatable work across engraving, milling, drilling, and circuit board work.

• Holds end mills and drills firmly for clean, accurate cuts
• ER32 clamping range covers 11-13 mm with 1 mm elastic shrinkage
• Made from 40Cr steel with quenching and tempering for wear resistance
• Low runout and repeatable clamping for consistent results

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