Mini Drill Chuck Adapter (3.17mm Shaft) | 0.5-3.2mm Quick Change Holder
Mini Drill Chuck Adapter (3.17mm Shaft) | 0.5-3.2mm Quick Change Holder
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Short Product Description
Short Product Description
Transform any standard 3.17mm (1/8") motor into a precision rotary tool with ourMini Drill Chuck Adapter. Featuring a robust brass base and a 3-jaw chuck, it securely holds micro drill bits ranging from0.5mm to 3.2mm. Whether you are building a DIY mini drill for PCB boards, crafting jewelry, or working on scale models, this keyless chuck delivers wobble-free rotation and quick bit changes.Includes an Allen wrenchfor fast, secure installation.
Key Features
Key Features
- 0.5-3.2mm Clamping Range: Securely holds tiny micro drill bits and rotary accessories, perfect for high-precision crafting and PCB drilling.
- Exact 3.17mm Tail Hole: Engineered to fit standard 1/8" motor shafts perfectly, enabling you to build custom DIY mini drills with ease.
- Premium Brass & Alloy Construction: The solid brass base ensures stable rotation, while the durable alloy chuck resists wear and tear during high-speed use.
- Keyless 3-Jaw Design: Allows for rapid, tool-free bit changes simply by twisting the knurled outer casing.
- Complete Setup Kit: Includes a dedicated Allen wrench (hex key) to securely tighten the set screw against the motor shaft, preventing slippage.
Full Product Description
Full Product Description
Build Your Own Precision Mini Drill
Finding the right tool for micro-drilling can be expensive and frustrating. This Mini Drill Chuck Adapter allows you to easily build your own custom rotary tool. Designed specifically to fit standard 3.17mm (1/8") motor shafts (such as 540, 550, or 385 motors), the solid brass base slides on smoothly and locks tightly in place using the included set screw and Allen wrench. No slipping, no wobbling—just pure, reliable rotation.
Versatile 0.5-3.2mm Clamping Range
Stop struggling with fixed-size collets. Our versatile 3-jaw chuck design easily adjusts to accommodate a wide variety of micro drill bits, grinding stones, and polishing burs ranging from 0.5mm up to 3.2mm. This makes it the ultimate all-in-one adapter for intricate tasks like drilling circuit boards, carving wood, or detailing resin crafts.
Quick-Change Keyless Design
Keep your workflow moving. The knurled black chuck body provides an excellent grip, allowing you to tighten and loosen drill bits entirely by hand. This keyless operation means you can swap out bits in seconds without hunting for a specialized chuck key, saving you time and frustration during complex DIY projects.
Technical Specifications
Technical Specifications
| Specification | Details |
|---|---|
| Tail Hole Diameter | 3.17mm (Fits standard 1/8" motor shafts) |
| Clamping Range | 0.5mm - 3.2mm |
| Chuck Type | 3-Jaw Keyless Chuck |
| Material | Brass (Base) + Alloy (Chuck Body) |
| Total Length | 33 mm (1.29 in) |
| Chuck Body Length | 18 mm (0.7 in) |
| Brass Base Length | 11 mm (0.43 in) |
| Included Accessories | 1x Mini Chuck, 1x Allen Wrench (Hex Key) |
Delivery Options
Delivery Options
- Local delivery within Hong Kong and in-store pickup.
- Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
- Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
- Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
- In-store pickup details (location and time) will be confirmed by email or phone message.
- Delivery times are estimates and may be affected by weather or unforeseen circumstances.
FAQ Section
FAQ Section
- What type of motors will this adapter fit?This adapter features a 3.17mm tail hole, making it perfectly compatible with standard 1/8" motor shafts. This is the common shaft size for many DC motors used in RC hobbies and DIY tools, such as the 540, 550, and 385 series motors.
- Do I need a tool to change the drill bits?No! The chuck features a keyless, knurled design. You can easily tighten or loosen the jaws by hand to swap out your 0.5mm-3.2mm drill bits in seconds.
- How do I secure the adapter to the motor?The brass base features a small set screw. Simply slide the adapter onto your 3.17mm motor shaft and use the included Allen wrench to tighten the screw, locking the chuck firmly in place.
Target Users / Applications
Target Users / Applications
- DIY Tool Builders: Hobbyists looking to convert spare DC motors into custom, high-speed rotary tools.
- Electronics & PCB Makers: Perfect for holding micro drill bits to create precise holes in printed circuit boards.
- Model Makers & Crafters: Ideal for drilling tiny holes in plastic models, resin, wood, and jewelry pieces.
