2uul Da81 Chargeable Polish Drill Pen
1. Solve the problem of traditional grinding pen beater, no vibration rotation at high
speed, and grinding chip more secure.
2. Long gourd appearance design is more comfortable to hold
3. Set 5 different specifications, suitable for repairing IC chip grinding, motherboard
cutting, bracket, polishing edge, etc.
4. 3-speed settings to meet different operation requirements
5. USB connection, easier to use
6. Rechargeable
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The 2UUL DA81 is a professional-grade, cordless mini electric grinding and polishing pen engineered explicitly for micro-soldering, smartphone motherboard repair, and precision IC chipping. Whether you need to grind a CPU shield, cut a logic board screw, remove glue, or polish delicate components, this compact tool delivers stable torque and cordless convenience to your workbench.
| Specification Parameter | Technical Details & Value |
| Brand | 2UUL |
| Model | DA81 Mini Electric Polishing Pen |
| Battery Type | Rechargeable Lithium-ion Battery |
| Charging Interface | Type-C USB Port (Fast and Convenient) |
| Speed Modes | 3-Speed Adjustable Gear System |
| Maximum Rotation Speed | Up to 15,000 RPM |
| Chuck Capacity | 2.35 mm Shank Diameter (Standard Compatibility) |
| Ergonomics | Lightweight, Pen-style Aluminum Alloy Body |
| Primary Application | Mobile Phone PCB Repair, Chip Grinding, IC Cutting, Glue Removal |
| Feature | How It Works | Benefit for Technicians |
| Cordless Portability | Built-in rechargeable cell; no trailing power cables. | Total freedom of movement; keeps the microscopic workspace clean and clutter-free. |
| 3-Level Smart Speed Control | Toggle between low, medium, and high RPM via a single button. | Prevents overheating or over-grinding fragile smartphone components and traces. |
| Type-C Fast Charging | Uses standard smartphone charging cables and power banks. | Reduces downtime; easy to charge anywhere on a modern tech workbench. |
| Universal 2.35mm Chuck | Accommodates standard size grinding heads, drill bits, and cutters. | Highly versatile; compatible with third-party burs, wire brushes, and polishing wheels. |
| High-Torque Motor | Balanced motor prevents stalling under reasonable pressure. | Smooth, skip-free cutting on tough metal shields or hard epoxy underfill resin. |







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