1. Introduction
The DUKA RS2 Ratchet Screwdriver Set is a versatile 40-in-1 tool designed for various household and metalworking tasks. This semi-automatic multi-purpose toolbox features a magnetic wrench, a wide array of screwdriver bits, and sockets, all housed in a compact and durable case. This manual provides detailed instructions for the safe and effective use and maintenance of your DUKA RS2 set.
2. Package Contents
Carefully unpack your DUKA RS2 Ratchet Screwdriver Set and ensure all items are present. The package should contain:
- 1 x Ratchet Wrench Body
- 1 x Handle
- 1 x Extension Rod
- 28 x Screwdriver Bits (various types and sizes)
- 9 x Sockets (various sizes)
- 1 x Storage Box (ABS+PC material)


3. Specifications
| Feature | Specification |
|---|---|
| Product Name | Ratchet screwdriver set |
| Product Model | RS2 |
| Product Size | 184 × 136 × 35 mm |
| Bit Size | 28 × 6.3 mm |
| Box Material | ABS + PC |
| Bit Material | S2 alloy steel |
| Ratchet Head Material | Powder metallurgy |
| Sleeve (Socket) Material | Chromium vanadium steel |
| Extension Rod Material | Aluminum alloy + chromium vanadium steel |
| Number of Accessories | 28 bits, 9 sockets, 1 ratchet wrench body, 1 handle, 1 extension rod |


4. Setup
The DUKA RS2 set offers multiple configurations for various tasks. Follow these steps to assemble your tool:
- Select the appropriate bit or socket: Identify the correct bit or socket for your screw or fastener.
- Insert bit/socket into the holder: The ratchet wrench body and handle feature a magnetic bit holder. Simply push the desired bit or socket firmly into the holder until it is securely seated.
- Attach extension rod (optional): For reaching fasteners in deep or narrow spaces, attach the extension rod between the bit/socket and the ratchet wrench body or handle.
- Assemble the ratchet wrench: The ratchet wrench body can be used directly with a bit/socket, or with the extension rod for added reach.
- Assemble the handle: The handle provides a comfortable grip for manual operation, especially for delicate tasks or when the ratchet function is not needed.



5. Operating Instructions
The DUKA RS2 offers flexible operation modes to suit different working conditions.
5.1 Ratchet Function
The ratchet wrench body allows for efficient tightening and loosening of fasteners without repositioning the tool. Use the switch on the ratchet head to select the desired direction:
- Clockwise (Right): For tightening screws.
- Counter-clockwise (Left): For loosening screws.
- Locked (Middle): To fix the head in place for manual turning or when the ratchet function is not needed.

5.2 Adjustable Angles
The ratchet head can be adjusted to various angles to access fasteners in awkward or confined spaces:
- 180° (Straight): For standard use, providing maximum leverage.
- 90°: Ideal for working in corners or when a perpendicular approach is needed.
- 135°: Offers an intermediate angle for improved access in semi-restricted areas.


5.3 Using the Extension Rod
The extension rod is useful for reaching fasteners that are recessed or otherwise difficult to access with the standard tool length. Simply insert the extension rod into the main body, then attach the desired bit or socket to the end of the extension rod.

5.4 Bit and Socket Types
The set includes a comprehensive range of bits and sockets to cover most common screw types:
- Cross (Phillips): PH1, PH2, PH3
- One Word (Slotted): SL4, SL5, SL6
- Plum Blossom (Torx): T5, T6, T7, T8, T9, T10, T15, T20, T25, T27
- Hexagon (Hex): H1.5, H2, H2.5, H3, H4, H5, H6, H6.35, H8
- PZ (Pozi): PZ0, PZ1, PZ2
- Sleeve (Hex Sockets): CV5, CV6, CV7, CV8, CV9, CV10, CV11, CV12, CV13


6. Maintenance
To ensure the longevity and optimal performance of your DUKA RS2 Ratchet Screwdriver Set, follow these maintenance guidelines:
- Cleaning: After each use, wipe down the tools with a clean, dry cloth to remove any dirt, grease, or debris. For stubborn grime, a slightly damp cloth can be used, followed by thorough drying.
- Lubrication: Periodically apply a small amount of light machine oil to the ratchet mechanism to ensure smooth operation. Avoid over-lubricating.
- Storage: Always store the tools in their original ABS+PC case. This protects them from dust, moisture, and physical damage, and keeps all components organized. Store in a dry environment.
- Inspection: Regularly inspect bits, sockets, and the ratchet mechanism for any signs of wear, damage, or corrosion. Replace worn or damaged components as necessary.
7. Troubleshooting
If you encounter issues with your DUKA RS2 Ratchet Screwdriver Set, refer to the following common problems and solutions:
- Bit/Socket not holding securely:
- Ensure the bit/socket is fully inserted into the magnetic holder.
- Check for debris in the holder that might prevent full insertion.
- Verify the bit/socket is not worn or damaged, which could affect its fit.
- Ratchet mechanism not engaging or slipping:
- Ensure the ratchet direction switch is fully engaged in either the clockwise or counter-clockwise position, not in the neutral (locked) position.
- Clean the ratchet mechanism to remove any accumulated dirt or debris.
- Apply a small amount of lubricant to the mechanism if it feels stiff.
- Difficulty turning screws:
- Ensure you are using the correct size and type of bit for the screw head.
- Apply adequate downward pressure to prevent cam-out.
- If the screw is seized, consider using a penetrating oil before attempting to turn it.
8. User Tips
- For delicate electronics or small screws, use the handle directly without the ratchet function for better control.
- Always select the largest possible bit or socket that fits the fastener head to prevent stripping.
- When working in tight spaces, experiment with the adjustable angles (90°, 135°) of the ratchet head to find the most comfortable and effective position.
- The magnetic bit holder is strong, but always double-check that bits are securely seated before applying torque.
- Keep the case organized to quickly find the right tool for the job and prevent loss of small components.
9. Warranty and Support
For warranty information or technical support, please refer to the seller's policies or contact the point of purchase. Keep your purchase receipt as proof of purchase.





