Mini Drill Chuck Collet Set 0.3–3.4mm | 5 Sizes + Wrench
Mini Drill Chuck Collet Set 0.3–3.4mm | 5 Sizes + Wrench
Mini Drill Chuck Collet Set – Universal Fit for DC Motors & Rotary Tools
Upgrade your DIY builds, PCB drilling, and electric grinding projects with this precision mini drill chuck collet set. Covering a clamping range of 0.3–3.4mm, it fits the most common DC motor shaft diameters and comes packaged with a small wrench for easy tightening — everything you need in one compact kit.
Built from aluminum alloy and brass, this mini chuck delivers reliable grip and durability for hobby electronics, woodworking, engraving, and model-making applications. Five tail aperture sizes are included to match a wide range of motor shafts right out of the box.
Key Features
- Wide Clamping Range: Securely holds bits from 0.3mm to 3.4mm in diameter
- 5 Tail Aperture Sizes: 2.0mm / 2.35mm / 3.0mm / 3.17mm / 5.0mm — covers the most popular DC motor shafts
- Durable Materials: Aluminum alloy body with brass chuck for lasting performance
- Includes Mini Wrench: For quick, secure tightening and bit changes
- Broad Motor Compatibility: Designed for 180, 385, 555, and 775 DC motors
- Ideal for DIY & Maker Projects: Perfect for woodworking, electronics assembly, engraving, and model crafting
Motor Compatibility Guide
| Motor Model | Shaft Diameter | Collet Size |
|---|---|---|
| 180 Motor | 2.0mm | 2.0mm tail aperture |
| 385 Motor | 2.35mm | 2.35mm tail aperture |
| 555 Motor | 3.17mm | 3.17mm tail aperture |
| 775 Motor | 5.0mm | 5.0mm tail aperture |
Specifications
- Material: Aluminum Alloy + Brass
- Clamping Range: 0.3–3.4mm
- Tail Aperture Sizes: 2.0mm, 2.35mm, 3.0mm, 3.17mm, 5.0mm
- Package Contents: 1× Mini Chuck + 1× Small Wrench
- Made in China
Pro Tip: If your motor model is unknown, use a caliper accurate to 0.1mm to precisely measure the motor shaft diameter before selecting your collet size.
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Frequently Asked Questions
Q: What DC motor shaft sizes does this mini chuck collet set support?
A: This set includes five tail aperture sizes — 2.0mm, 2.35mm, 3.0mm, 3.17mm, and 5.0mm — to match the most common DC motor shaft diameters, including 180, 385, 555, and 775 motor models. If your motor shaft diameter falls outside these standard sizes, measure it carefully with a caliper before ordering.
Q: What is the clamping range for the drill bits this chuck can hold?
A: The mini drill chuck collet clamps bits ranging from 0.3mm to 3.4mm in diameter, making it suitable for precision drilling, engraving, PCB work, and small-scale woodworking or hobby projects.
Q: What materials is this mini drill chuck made from?
A: The chuck body is constructed from aluminum alloy combined with a brass collet, offering a balance of lightweight handling and durable grip for regular workshop or hobby use.
Q: Does this set come with a wrench for tightening?
A: Yes, each set includes one mini chuck and one small wrench, so you can securely tighten and swap out drill bits without needing any additional tools.