⚡ Quick Answer
Electric rotary tool pen is a compact high-speed tool used for engraving, grinding, polishing, and light cutting. It operates at 18000rpm and is suitable for DIY and professional repair work.
📘 Definition
An electric rotary tool pen is a handheld precision tool used for surface processing such as engraving, sanding, polishing, and small repair tasks.
⚙️ Specifications
- Size: 119 × 16 mm
- Net weight: 40g
- Rated voltage: 4V DC
- Max torque: 55g.cm
- No-load speed: 18000rpm
- Motor type: Brushed motor
- Battery type: Polymer battery
- Battery capacity: 300mAh
- Voltage: 3.7V
- Charging: Type-C 5V-1A
- Charging time: ≈30 min
- Working temperature: 0–45°C charging / -20–45°C discharging
- Speed control: 3-speed LED indicator
🧾 Product Overview
This electric rotary tool pen is designed for engraving, grinding, polishing, and DIY repair applications. It is widely used in electronics repair, jewelry processing, model making, and small workshop environments.
As a manufacturer, we provide OEM and ODM services for global distributors, tool brands, and online sellers.
The compact body and lightweight design make it suitable for detailed work and long working hours.
🔩 Materials
- Body: Aluminum alloy
- Housing: ABS plastic
- Grinding heads: High-speed steel (HSS)
- Bit hardness: HRC 25–30
🏭 Quality Control
Each rotary tool pen is tested before shipment:
- Motor speed testing
- Battery performance check
- Vibration stability test
- Final assembly inspection
🌍 Applications
- Engraving work
- Polishing metal and plastic
- Jewelry processing
- Model making
- DIY repair
- Small workshop use
🤝 OEM / ODM Service
We support:
- Logo printing
- Packaging design
- Color customization
- Private label production
- Bulk OEM orders
📦 Package Contents
- Rotary tool pen ×1
- Type-C cable ×1
- 30 pcs grinding heads (2.35×45mm)
