⚡ Quick Answer
Electric rotary tool pen is a compact high-speed tool designed for engraving, polishing, grinding, and light cutting work. It runs at 18000rpm and is suitable for precision repair and DIY applications.
📘 Definition
An electric rotary tool pen is a handheld precision tool used for surface processing such as engraving, sanding, polishing, and fine detailing tasks.
⚙️ Specifications
- Size: 119 × 16 mm
- Net weight: 40g
- Rated voltage: 4V DC
- Max torque: 55g.cm
- Motor type: Brushed motor
- No-load speed: 18000rpm
- 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-level LED indicator
🧾 Product Overview
This electric rotary tool pen is designed for engraving, polishing, grinding, and DIY repair work. It is widely used in electronics repair, jewelry processing, model making, and small workshop applications.
As a manufacturer, we provide OEM and ODM solutions for global distributors, tool brands, and online sellers.
The compact design and lightweight structure make it suitable for detailed work and long working hours.
🔩 Materials
- Body: Aluminum alloy
- Housing: ABS plastic
- Grinding heads: High-speed steel (HSS)
- Hardness: HRC 25–30
🏭 Quality Control
Each rotary tool pen is tested before shipment:
- Motor speed testing
- Battery performance check
- Vibration stability test
- Assembly inspection
🌍 Applications
- Engraving work
- Polishing metal and plastic
- Jewelry processing
- Model making
- DIY repair
- Small workshop use
🤝 OEM / ODM Service
We support:
- Logo customization
- 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)
