10-Piece Brass Mini Drill Chuck Set 0.5mm–3.2mm Rotary Tool

10-Piece Brass Micro Collet Chuck Adapter Set for Rotary Tools

Upgrade your DIY precision work with this 10-piece brass mini drill chuck set, designed to fit a wide range of micro drill bits from 0.5mm to 3.2mm. Whether you're into woodworking, model making, PCB drilling, jewelry crafting, or fine detail engraving, these collet-style chuck adapters give you secure, wobble-free bit holding for your rotary power tool.

Each adapter is precision-machined from solid brass for durability and reliable grip. The set covers 10 of the most commonly used micro drill sizes, so you always have the right chuck on hand for any project. Made in Mainland China.

Key Features

• Material: Solid brass — corrosion-resistant and long-lasting
• Bit Shank Clamp Diameter: 4.3mm (direct clamping end)
• Spindle Inner Hole Compatibility: 4.4mm
• 10 Sizes Included: 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.4mm, 3.0mm, 3.2mm
• Pack Quantity: 10 pieces
• Compatible with most standard rotary power tools and DIY drill presses
• Ideal for woodworking, model making, jewelry work, PCB drilling, and more
• Compact and easy to store — switch sizes in seconds

What's in the Box?

• 10 × Brass Micro Collet Chuck Adapters (one of each size: 0.5, 0.8, 1.0, 1.2, 1.5, 1.8, 2.0, 2.4, 3.0, 3.2mm)

Great For

• Precision woodworking and carving
• PCB and circuit board drilling
• Jewelry and metalwork crafting
• Model building and miniature work
• Arts, crafts, and hobby projects

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For safe workshop practices and tool usage guidance, visit the OSHA Tools & Equipment Safety Resource.

Note: Due to variations in monitor settings and lighting, actual color may differ slightly from product images. Minor dimensional tolerances may apply due to manual measurement.

Learn more: Drill bit shank

Frequently Asked Questions

Q: What rotary tools are these brass mini drill chuck adapters compatible with?

A: These micro collet chuck adapters are designed for most standard rotary power tools with a 4.4mm spindle inner hole, making them compatible with popular brands of Dremel-style rotary tools, mini drill presses, and similar DIY power tools.

Q: What sizes are included in this 10-piece brass mini drill chuck set?

A: The set includes 10 individual brass collet chuck adapters in the following sizes: 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, 2.4mm, 3.0mm, and 3.2mm — covering the most commonly used micro drill bit shanks for precision DIY work.

Q: Why choose brass for micro collet chuck adapters?

A: Brass is an excellent material for chuck adapters because it is naturally corrosion-resistant, machinable to tight tolerances, and provides a secure, stable grip on drill bit shanks. It strikes the ideal balance between durability and precision for fine detail rotary tool work.

Q: Is this set suitable for PCB drilling?

A: Yes! The range of sizes from 0.5mm to 3.2mm makes this set perfectly suited for PCB (printed circuit board) drilling, where precision micro bit control is essential. The brass collets hold bits firmly to minimize runout and ensure clean, accurate holes.