Mini Drill Chuck Collet Set 0.3–3.4mm | DC Motor Tool Fixture
Mini Drill Chuck Collet Set 0.3–3.4mm | DC Motor Tool Fixture
Universal Mini Drill Chuck Collet Set — Precise, Versatile & Compact
Upgrade your DIY workshop or electronics bench with this Multi-functional Mini Drill Chuck Collet Set. Designed to fit a wide range of DC motors and electric grinding tools, this aluminum alloy and brass chuck delivers a secure, wobble-free grip on drill bits and accessories from 0.3 mm to 3.4 mm in diameter — all in one compact kit that includes a small tightening wrench.
Key Features
- Wide Clamping Range: Accepts bits and shafts from 0.3 mm to 3.4 mm for maximum versatility
- 5 Tail Aperture Sizes: 2.0 mm / 2.35 mm / 3.0 mm / 3.17 mm / 5.0 mm — compatible with most common DC motor shaft diameters
- Premium Materials: Aluminum alloy body + brass collet for durability, lightweight handling, and reliable grip
- Includes Mini Wrench: The bundled small wrench makes tightening and releasing bits quick and tool-free hassle
- Broad Motor Compatibility: Works with 180, 385, 555, and 775 DC motors right out of the box
- DIY & Craft Friendly: Ideal for woodworking, PCB drilling, model making, engraving, and electronics projects
Specifications
| Material | Aluminum Alloy + Brass |
| Clamping Range | 0.3 mm – 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 shaft) / 385 (2.35 mm shaft) / 555 (3.17 mm shaft) / 775 (5.0 mm shaft) |
| Package Contents | 1 × Mini Chuck Collet + 1 × Small Wrench |
| Country of Origin | Made in China |
Motor Selection Guide
Not sure which size to choose? Match your DC motor model to the correct shaft diameter:
- 180 Motor → 2.0 mm shaft aperture
- 385 Motor → 2.35 mm shaft aperture
- 555 Motor → 3.17 mm shaft aperture
- 775 Motor → 5.0 mm shaft aperture
Tip: If your motor model is unknown, use a caliper accurate to 0.1 mm to measure the exact shaft diameter before selecting your chuck size.
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Frequently Asked Questions
Q: What is this mini drill chuck collet set used for?
A: This mini drill chuck collet is used to securely attach small drill bits, engraving bits, or grinding accessories (0.3–3.4 mm) to DC motors and electric rotary tools. It is popular for woodworking, PCB drilling, model building, engraving, and other precision DIY tasks.
Q: How do I know which tail aperture size to select for my motor?
A: Match your DC motor model to its standard shaft diameter: 180 motor = 2.0 mm, 385 motor = 2.35 mm, 555 motor = 3.17 mm, 775 motor = 5.0 mm. If your motor model is unlisted or unknown, measure the shaft diameter with a 0.1 mm-accurate caliper and choose the matching aperture size.
Q: What materials are the chuck and collet made from?
A: The chuck body is constructed from lightweight aluminum alloy, while the collet is made from brass — a combination that provides durability, corrosion resistance, and a secure, precise grip on drill bits and tool shanks.
Q: Does the set include a wrench for tightening the chuck?
A: Yes! Each set comes with one mini chuck collet and one small tightening wrench, so you can quickly and securely fasten or release bits without needing additional tools.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.