Collet Lock Nut Disclaimer Notice

1. Safety Warning: Tighten lock nut fully before startup to avoid drill bit flying out at high speed.
2. Disclaimer: This universal collet lock nut is aftermarket rotary tool spare part, not original matching component of any power tool brand.

Core Product Features

• Four common clamping sizes: 0.8mm / 1.5mm / 2.35mm / 3.2mm, cover 0.6~3.2mm shank bits
• High-quality brass alloy material, anti-slip thread, wear-resistant for long-term use
• High concentric clamping design, low vibration during high-speed carving & polishing
• Unified inner caliber 4.5mm, fit spindle bore 4.3~4.5mm of most mini grinders
• Integrated lock nut structure, easy disassembly without special tools
• Widely used for wood carving, nail polishing, metal mold deburring work
• Single independent specification, select matched size according to drill bit shank

Full Technical Specifications

Package Included

• 1 × Brass Collet Lock Nut (Select your required size)
• Multilingual Installation Manual

Wide Application Scenarios

• DIY wood carving & small handicraft trimming
• Nail salon acrylic nail shaping drill clamping
• Hardware mold tiny burr removal processing
• Jewelry jade fine polishing fixture replacement

Safe Operation Steps

1. Choose matched lock nut based on drill bit shank diameter first.
2. Insert carving bit into collet and screw lock nut tightly.
3. Check tightness before turning on grinding machine power.
4. Replace nut if thread wears and cannot clamp firmly.

Frequently Asked Questions

Q1 What spindle bore does this lock nut fit?

A1 Fits 4.3mm to 4.5mm standard mini grinder spindle bore.

Q2 What shank sizes can this collet clamp?

A1 Four options for 0.6-3.2mm carving burrs and drill bits.

Q3 Why brass material is adopted?

A1 Brass thread is wear-resistant, not easy to slip during frequent disassembly.

Q4 Is this lock nut made for specific brand grinders?

A1 This universal clamping spare part, not original factory matching accessory.

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