The 2UUL DA85 CVT Pro is an advanced, high-precision electric rotary grinding and polishing pen powered by an industrial-grade high-torque coreless motor. Engineered specifically for delicate smartphone motherboard repair, micro-soldering, and BGA IC layer removal, the coreless motor provides rapid acceleration, zero-vibration concentricity, and constant torque even under load. This eliminates the jerking, stalling, or surface gouging common with traditional brush motors, ensuring safe, micro-level precision under the microscope.

Equipped with an intuitive stepless CVT (Continuously Variable Transmission) speed control system, the DA85 Pro allows technicians to fine-tune rotational speeds smoothly to match diverse materials—from soft epoxy underfill and delicate copper PCB traces to hardened steel motherboard shield frames and stripped screws. Designed with a balanced, ergonomic pen-style grip to eliminate hand fatigue and bundled with 10 pieces of high-precision DA82 grinding/drill heads, this tool is an essential addition to any advanced mobile repair workstation and service center.

Key Features

1. High-Performance Coreless Motor: Delivers powerful, consistent rotational torque with ultra-low vibration and near-silent operation for delicate microscopic repair tasks.
2. Smooth CVT Stepless Speed Control: Seamlessly calibrate rotation speeds to match the exact hardness of IC chips, epoxy resins, and logic board shield brackets.
3. Includes 10 Pcs DA82 Precision Heads: Complete set of interchangeable grinding, drilling, and polishing burs covers every workshop requirement out of the box.
4. Zero-Runout Stable Concentricity: Balanced high-precision chuck ensures drill bits rotate true without wobble, preventing accidental damage to nearby PCB tracks.
5. Ergonomic Pen-Style Grip: Contoured, lightweight body reduces hand and wrist fatigue during extended micro-soldering and grinding sessions.
6. Multi-Functional Repair Application: Perfect for BGA chip grinding, motherboard shield cutting, stripped screw removal, black glue cleaning, and bezel edge polishing.

Specifications

1. Brand: 2UUL
2. Model: DA85
3. Series: CVT Pro Coreless Series
4. Product Type: High-Precision Cordless Electric Grinder & Polishing Pen
5. Motor Architecture: High-Efficiency Coreless Precision Motor
6. Speed Regulation: CVT (Continuously Variable Transmission) Stepless Speed System
7. Chuck Compatibility: Standard 2.35 mm Collet Fitting
8. Included Accessories: 10 × DA82 Precision Grinding / Drill Heads
9. Body Material: High-Grade Anodized Aluminum Alloy & Ergonomic Composite
10. Power Interface: USB Type-C Fast Charging / 5V DC Input
11. Application: Mobile Motherboard Repair, IC Layer Grinding, CPU/NAND Underfill Removal, Shield Frame Cutting, Precision PCB Polishing

Package Includes

1. 1 × 2UUL DA85 CVT Pro Coreless Electric Grinder Pen
2. 10 × DA82 Precision Grinding / Polishing Drill Heads
3. 1 × USB Type-C 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.