1. Introduction
Thank you for choosing the FOLAI DIY Pen Electric Engraving Tool. This versatile tool is designed for precision engraving on a wide range of materials, including metal, stone, plastic, glass, ceramic, wood, and leather. Its compact, pen-like design and high-speed motor make it ideal for personalizing items, crafting, and adding unique touches to your belongings.

Figure 1: Overview of the FOLAI Electric Engraving Pen, highlighting its key components.
2. Safety Information
WARNING: Always read and understand all safety instructions before using this tool. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.
- Eye Protection: Always wear safety glasses or goggles to protect your eyes from flying debris during operation.
- Hand Protection: Consider wearing gloves to protect your hands, especially when handling sharp bits.
- Work Area: Ensure your work area is well-lit and clean. Keep children and bystanders away while operating the tool.
- Secure Workpiece: Always secure the material you are engraving to prevent it from moving unexpectedly.
- Ventilation: Work in a well-ventilated area, especially when engraving materials that may produce fine dust or fumes.
- Battery Safety: Use only the specified AAA batteries. Do not mix old and new batteries, or different types of batteries. Remove batteries when the tool is not in use for extended periods.
- Avoid Contact: Do not touch the engraving bit while the tool is operating or immediately after use, as it may be hot.
- Proper Storage: Store the tool and accessories in a dry, secure place out of reach of children.
3. Package Contents
Verify that all items listed below are included in your package:
- 1 x FOLAI Electric Engraving Pen
- 2 x AAA Batteries
- 2 x Diamond Tip Bits (one pre-installed, one spare)
- 2 x Bit Replacement Tools
- 16 x Engraving Templates (stencils)
- 1 x Box of Sanding Tools (accessories)

Figure 2: Included components of the FOLAI Electric Engraving Tool kit.
4. Setup
4.1. Battery Installation
- Unscrew the bottom cap of the engraving pen.
- Insert two (2) AAA batteries, ensuring correct polarity (+/-).
- Screw the bottom cap back on securely.
4.2. Diamond Tip Bit Installation/Replacement
The engraving pen uses a standard 3/32-inch diamond tip bit. A small tool is provided for easy bit replacement.
- Ensure the tool is turned off and batteries are removed for safety.
- Locate the small hole on the head of the engraving pen.
- Align one of the provided bit replacement tools with this hole.
- Insert the tool into the hole and gently turn to loosen the existing bit or to create space for a new bit.
- Carefully insert the diamond tip bit into the collet until it is seated firmly.
- Tighten the bit by turning the replacement tool in the opposite direction until the bit is secure. Do not overtighten.

Figure 3: Detailed steps for installing or replacing the engraving bit.
5. Operating Instructions
5.1. General Operation
- Hold the engraving pen like a regular pen, with your thumb positioned over the control button.
- Press the red button to activate the tool. The motor will start, and the diamond tip bit will vibrate rapidly.
- Gently touch the rotating bit to the surface of the material you wish to engrave. Apply light, consistent pressure.
- Move the pen slowly and steadily to create your desired design or text. Avoid pressing too hard, as this can damage the bit or the material.
- Release the button to turn off the tool.

Figure 4: Proper grip for operating the engraving pen.
5.2. Engraving on Different Materials
The FOLAI engraving tool is suitable for various materials:
- Metal: Ideal for personalizing jewelry, dog tags, and tools.
- Glass/Ceramic: Perfect for decorating glassware, mirrors, and ceramic items.
- Plastic/Wood/Leather: Use for custom designs on phone cases, wooden crafts, or leather goods.

Figure 5: Demonstrating the versatility of the engraving tool on different surfaces.
5.3. Using Engraving Templates
For precise and intricate designs, utilize the included engraving templates:
- Secure the template onto your workpiece using tape or a temporary adhesive.
- Trace the design carefully with the engraving pen, keeping the bit within the template's lines.
- Remove the template once the engraving is complete.

Figure 6: Assortment of engraving templates for various designs.
5.4. Video Demonstrations
Video 1: Demonstrating the carving of beautiful patterns on a cup using the FOLAI engraving tool.
Video 2: Short demonstration of the engraving tool working effectively on glass.
Video 3: Overview of the FOLAI tool for jewelry making and general engraving tasks.
6. Maintenance
6.1. Cleaning
After each use, gently wipe the engraving pen with a soft, dry cloth to remove any dust or debris. Ensure no particles enter the motor housing.
6.2. Bit Care
Diamond tip bits can wear down over time. Replace bits when they become dull or damaged to maintain engraving quality. Refer to Section 4.2 for bit replacement instructions. Keep spare bits clean and stored safely.
6.3. Battery Replacement
If the tool's performance decreases (e.g., lower RPM), it may be time to replace the batteries. Follow the instructions in Section 4.1.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not turn on or has low power. | Dead or incorrectly inserted batteries. | Check battery polarity or replace with fresh AAA batteries. |
| Engraving is not deep enough or inconsistent. | Dull or damaged diamond tip bit; insufficient pressure. | Replace the diamond tip bit. Apply slightly more consistent pressure, but avoid excessive force. Make multiple passes if needed. |
| Bit falls out during operation. | Bit not securely tightened. | Ensure the bit is properly inserted and tightened using the bit replacement tool. |
| Tool vibrates excessively or makes unusual noise. | Loose bit or internal component issue. | Check if the bit is securely fastened. If the issue persists, discontinue use and contact customer support. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | FOLAI |
| Model Number | SE-0808 |
| Power Source | Battery Powered |
| Batteries Required | 2 AAA batteries |
| Voltage | 3 Volts |
| Maximum Rotational Speed | 21,000 RPM |
| Included Components | Diamond Tip Bits, Bit Replacement Tools, Engraving Templates, Sanding Tools |
| Item Dimensions (L x W x H) | 7.95 x 3.39 x 0.71 inches |
| Item Weight | 5.3 ounces |
9. Warranty and Support
Specific warranty information is not provided in the product details. For any questions, technical support, or warranty claims, please contact the seller or manufacturer directly through your purchase platform.