1. Product Positioning
The Mini Electric Rotary Tool Pen 106 is a lightweight, high-speed, and precision-driven cordless tool engineered for:
- Engraving
- Polishing
- Grinding
- Drilling
- Fine-detail DIY applications
Designed for global B2B buyers, this model combines:
- Portable design
- Powerful performance
- Flexible customization
Making it a top-selling solution for:
- Tool brands
- Distributors
- eCommerce sellers
Target SEO Keywords
- mini electric rotary tool manufacturer
- cordless engraving pen OEM supplier
- precision grinding tool wholesale
- DIY electric grinder pen with accessories
2. Target Buyers & Use Cases
✔ Ideal Buyers
- Amazon / Shopify tool sellers
- Hardware wholesalers & distributors
- Electronics repair tool suppliers
- Nail & beauty equipment brands
- DIY craft brands & hobby markets
✘ Not Suitable For
- Heavy-duty industrial grinding
- High torque drilling (thick metal)
- Continuous industrial production use
3. Application Scenarios
Widely used in:
- Electronics Repair (phones, laptops, circuit boards)
- Jewelry Engraving & Polishing
- DIY Craft & Handmade Projects
- Nail Art Grinding & Polishing
- Wood Carving & Micro Drilling
- Plastic & Resin Processing
- Model Making & Hobby Work
Long-tail SEO Keywords
- best mini rotary tool for jewelry engraving
- cordless engraving pen for DIY crafts
- precision electric grinder for electronics repair
4. Core Selling Points
🔹 Ultra-Compact & Lightweight Design
- Size: 119 × 16 mm
- Weight: 40g
- Easy handling for precision work
🔹 High-Speed Performance (18,000 RPM)
- Stable carbon brush motor
- Smooth and consistent operation
🔹 Rechargeable Lithium Battery (300mAh)
- Type-C fast charging
- Charging time: ~30 minutes
- Supports use while charging
- Portable and efficient
🔹 3-Speed Adjustable Control System
- Long press → Power ON/OFF
- Short press → Speed adjustment
- LED indicators display speed level
🔹 30PCS Professional Grinding Bits Included
- Standard size: 2.35 × 45 mm
- Covers multiple applications
🔹 Multiple Color Options (OEM Supported)
Available colors:
Grey / Silver / Black / Blue / Pink / Red / Purple / Gold / Orange / Green
✔ Supports:
- Color customization
- Logo branding
- Packaging customization
5. Technical Specifications
| Item | Specification |
|---|---|
| Model | Rotary Tool Pen 106 |
| Voltage | 3.7V / 4V (DC) |
| No-load Speed | 18,000 RPM |
| Max Torque | 55 g.cm (stall torque) |
| Battery Capacity | 300mAh |
| Charging Interface | Type-C |
| Charging Input | 5V / 1A |
| Charging Time | Approx. 30 minutes |
| Working Mode | Supports charging while working |
| Chuck Size | 2.35mm metal collet |
| Speed Control | 3-speed adjustable |
| Motor Type | Carbon brush motor |
| Material | Aluminum alloy + ABS |
| Product Size | 119 × 16 mm |
| Net Weight | 40g |
| Accessories | 30PCS grinding bits |
6. Materials & Durability
- Aluminum Alloy Handle → Lightweight & premium
- ABS Housing → Impact & heat resistant
- High-Speed Steel Bits (25–30 HRC) → Durable
Optional Custom Materials
- 45# steel
- Tungsten carbide
- Non-metal polishing tools
7. Customization Flexibility (OEM Advantage)
🔹 Grinding Head Customization
- Shape: Fully customizable
- Types:
- Polishing
- Cutting
- Drilling
- Rubber
- Non-metal
🔹 OEM Branding Options
- Logo printing / laser engraving
- Color customization
- Retail packaging design
- Accessory kit customization
Suitable for:
- Amazon private label
- Brand distributors
- Promotional products
8. Quality Control & Reliability
Strict QC process includes:
- Full functional testing before shipment
- Motor performance verification
- Battery safety testing
- Packaging drop test
✔ Ensures stable quality and reliability
9. Production Capacity & Delivery
- MOQ (Standard): 500 PCS
- MOQ (OEM): 1000 PCS
- Sample Time: 3–5 days
- Delivery Time: 10–15 days (1000 PCS)
- Flexible production capacity
Packaging Details
- 80 PCS / carton
- Gross Weight: 17 KG
- Carton Size: 54.5 × 41.5 × 43.5 cm
10. Model Comparison
| Model | Speed | Battery | Accessories | Best For | Cost Level |
|---|---|---|---|---|---|
| Model 106 | 3-speed | 300mAh | 30PCS | General DIY & B2B retail | Medium |
| Basic Model | Single speed | 200mAh | 10PCS | Entry-level | Low |
| Advanced Model | 5-speed | 500mAh | 50PCS | Professional users | High |
11. Cost & Risk Analysis
🔹 Cost Factors
- Material (aluminum vs plastic)
- Battery capacity
- Accessories quantity
- Customization level
⚠ Buyer Risk Control
- Stable supply chain
- Consistent product quality
- Fast delivery
- OEM reduces branding cost
12. Why Choose Our Factory
- Professional manufacturer of electric tools
- Strong R&D and OEM/ODM capability
- Export experience (USA / Europe / Southeast Asia)
- Fast response & low MOQ support
13. Call To Action
📩 Looking for a reliable mini rotary tool supplier?
📩 Want to build your own engraving tool brand?
Contact us now to get:
- Free samples
- OEM customization solutions
- Factory direct quotation
14. FAQ
Q1: Can this tool engrave metal?
Yes, suitable for light engraving and polishing.
Q2: Does it support continuous use?
Yes, supports working while charging.
Q3: Is it suitable for beginners?
Yes, very easy to operate.
Q4: Can I customize accessories?
Yes, full customization available.
Q5: What is the MOQ?
500 PCS standard, 1000 PCS OEM.
Q6: How long is delivery time?
10–15 days depending on quantity.
Q7: What markets do you serve?
USA, Europe, Southeast Asia, Middle East.
Q8: Are replacement bits standard?
Yes, universal 2.35mm size.
Q9: Is the motor durable?
Yes, stable carbon brush motor.
Q10: Can you provide private label packaging?
Yes, fully supported.








