The 2UUL DA84 CVT Grinder Pro Version is a heavy-duty, high-precision cordless rotary tool engineered specifically for smartphone frame restoration, motherboard repair, micro-soldering, and BGA IC grinding. Featuring an advanced CVT (Continuously Variable Transmission) stepless speed control system paired with a high-torque motor delivering up to 18,000 RPM, it gives technicians smooth, millimeter-level rotational speed adjustment without fixed gear jumps, preventing accidental damage to delicate PCB traces, glass edges, or internal flex cables.

Powered by a massive built-in 3400mAh rechargeable lithium battery, the DA84 Pro ensures long uninterrupted runtime during intense workbench repair sessions. Its balanced, ergonomic CNC aluminum body provides a firm, vibration-free grip under the microscope. Whether smoothing dented middle frames, cutting stripped screws, beveling glass screen edges, or removing stubborn black epoxy underfill around CPU and NAND chips, the DA84 CVT Grinder Pro delivers reliable, continuous power and workshop-grade accuracy.

Key Features

1. CVT Stepless Speed Control: Smooth rotary speed dial allows seamless, dynamic RPM adjustment (up to 18,000 RPM) tailored to specific component materials.
2. High-Capacity 3400mAh Battery: Large integrated rechargeable cell provides hours of cord-free operation without frequent recharges.
3. Zero-Vibration High-Torque Motor: Delivers smooth, stall-free rotational torque without runout jitter, protecting microscopic copper board traces.
4. Ergonomic Aluminum Alloy Body: Slim 22×25mm profile offers balanced, fatigue-free pen-style control during delicate microscope work.
5. Versatile Multi-Material Repair: Ideal for smoothing bent aluminum/titanium frames, cutting shielding brackets, removing stripped screws, and clearing underfill glue.
6. Universal 2.35mm Shank Compatibility: Accommodates standard 2.35mm precision grinding bits, carbide cutters, drill heads, and polishing burs.
7. Efficient Thermal Management: Internal heat dissipation channels prevent motor overheating during continuous high-load grinding tasks.

Specifications

1. Brand: 2UUL
2. Model: DA84
3. Series: CVT Grinder Pro Version
4. Product Type: Cordless Stepless Speed Mini Electric Grinder & Polishing Pen
5. Speed Regulation: CVT (Continuously Variable Transmission) Stepless Control
6. Maximum Speed: Up to 18,000 RPM
7. Battery Capacity: 3400 mAh Rechargeable Lithium Battery
8. Input Voltage: DC 5V (USB Powered)
9. Collet / Shank Fit: Standard 2.35 mm
10. Product Dimensions: 168 × 22 × 25 mm
11. Product Weight: Approx. 276 g (Package Gross Weight: ~1.0 kg)
12. Application: Mobile Frame Grinding, Screen Edge Resurfacing, IC Chip Grinding, Adhesive/Glue Cleaning, PCB Bracket Cutting

Package Includes

1. 1 × 2UUL DA84 CVT Grinder Pro Electric Polishing Pen
2. 1 × Set of Precision Polishing / Grinding Bits (Various Head Profiles)
3. 1 × USB Charging Cable

Important Notice & Terms

Important Advisory: Please ensure full technical compatibility and model verification before confirming your order. Products listed are sold under a strict No Return, No Exchange, and No Refund policy. Limited technical support is offered where feasible and cannot be guaranteed for every application. Fixtools is not liable for incorrect ordering or damage caused by improper usage; purchasing decisions rest entirely with the customer.