Mini Drill Chuck Collet Set 0.3–3.4mm | 5 Shaft Sizes
Mini Drill Chuck Collet Set 0.3–3.4mm | 5 Shaft Sizes
Universal Mini Drill Chuck Collet Set – 0.3 to 3.4mm Clamping Range
Upgrade your rotary tool, DIY grinder, or DC motor project with this precision mini drill chuck collet and wrench set. Crafted from aluminum alloy and brass, this compact yet sturdy fixture clamp accommodates a wide clamping range of 0.3 mm to 3.4 mm — making it ideal for hobbyists, woodworkers, electronics makers, and model builders who need reliable bit holding in a small package.
Five tail aperture sizes are included to fit the most common DC motor shaft diameters, so you can swap between setups without hunting for adaptors. A handy small wrench is included for quick, secure tightening every time. Made in Mainland China.
Key Features
- Wide clamping range: Holds drill bits and accessories from 0.3 mm up to 3.4 mm
- 5 tail aperture sizes: 2.0 mm, 2.35 mm, 3.0 mm, 3.17 mm, and 5.0 mm to suit popular DC motors
- Durable materials: Aluminum alloy body with brass chuck for long-lasting precision
- DC motor compatibility: Designed to fit 180, 385, 555, and 775 motor shaft diameters
- Includes small wrench: For easy, tool-assisted tightening and bit changes
- Compact design: Perfect for tight spaces, intricate work, and miniature drilling tasks
- Versatile use: Woodworking, PCB drilling, model making, jewelry crafting, and more
Specifications
| Material | Aluminum Alloy + Brass |
| Clamping Range | 0.3 – 3.4 mm |
| Tail Aperture Sizes | 2.0 mm / 2.35 mm / 3.0 mm / 3.17 mm / 5.0 mm |
| Compatible Motors | 180 (2.0 mm), 385 (2.35 mm), 555 (3.17 mm), 775 (5.0 mm) |
| Package Contents | 1 × Mini Chuck Collet + 1 × Small Wrench |
| Origin | Made in Mainland China |
How to Choose the Right Shaft Size
If your motor model is unknown, use a caliper accurate to at least 0.1 mm to measure the shaft diameter precisely, then select the matching tail aperture size from the options above. Choosing the correct fit ensures a secure grip, minimal runout, and accurate results.
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Frequently Asked Questions
Q: What motor shaft diameters does this mini drill chuck collet set fit?
A: This set includes five tail aperture options — 2.0 mm, 2.35 mm, 3.0 mm, 3.17 mm, and 5.0 mm — covering the most common DC motor shaft sizes, including 180, 385, 555, and 775 motors. If your motor is not listed, simply measure the shaft diameter with a 0.1 mm-accurate caliper and select the matching aperture.
Q: What drill bit sizes can this mini chuck collet hold?
A: The collet clamps any round shank bit or accessory with a diameter between 0.3 mm and 3.4 mm, making it suitable for micro drill bits, engraving bits, grinding tips, and other small rotary accessories commonly used in woodworking, PCB work, and model making.
Q: Is a wrench included with the mini drill chuck set?
A: Yes, each package includes one mini drill chuck collet and one small wrench for easy tightening and bit changes, so you have everything needed to get started right away.
Q: What materials is this mini chuck collet made from?
A: The chuck body is constructed from durable aluminum alloy, while the chuck itself is made of brass — a combination chosen for its balance of lightweight handling and reliable grip strength during precision work.