10 Pack Brass Collet Nut Adapters 3.2mm Replacement for Dremel Rotary Tools, Built Tough Copper Collet Nuts Fit Most Hobby and DIY Rotary Tool Sets, Heat Treated for High Hardness and Long Lasting Performance

10-Pack Brass Collet Nuts 3.2mm Replacement for Rotary Tools
✔️ 3.2mm shank, 4.3mm tail, copper heat-treated, 10 pcs per pack

These brass collet nuts are replacement adapters for rotary tools, designed to securely grip 2.9-3.2mm shanks and keep bits aligned in hobby and DIY projects. Heat-treated copper delivers high hardness and long life across frequent insertions and replacements.

✅ Size: 3.2mm (0.13") shank, tail diameter ~4.3mm (0.17")
✅ Material: heat-treated brass copper for high hardness and long life
✅ Compatibility: fits most hobby and DIY rotary tool sets with 2.9-3.2mm shanks
✅ Package: 10 pcs per pack to replace original collets
✅ Applications: holds accessories securely for precise work

💡 What is a brass collet nut used for in rotary tools and why choose heat-treated copper?

This handy piece secures small bits and keeps shanks centered for precise DIY work.

• Securely grips 2.9-3.2mm shanks for consistent performance
• Heat-treated copper creates a tougher, longer-lasting grip
• Fits most hobby and DIY rotary tool sets for quick replacements
• Reduces downtime by enabling fast swaps of worn collets