1. Introduction
The WORKPRO Mini Pliers Wrench, Model W031503, is a compact and versatile hand tool designed for precision tasks and use in tight spaces. Its unique design combines the functionality of pliers and a wrench, offering efficient operation without damaging workpieces.
Key Features:
- Compact Size: At just 4 inches, it delivers powerful gripping performance in a compact design, ideal for precision tasks and confined areas.
- Parallel Smooth Jaws: Designed to apply even pressure across flat surfaces, preventing rounding or scratching of delicate components and finished fittings.
- Fast Adjustment: Features a quick adjustment mechanism for easy size changes, serving as a versatile alternative to multiple wrenches.
- High-Toughness Alloy Steel: Constructed from heat-treated alloy steel for enhanced durability, corrosion resistance, and an anti-rust coating.
- Multi-Purpose: Suitable for everyday carry (EDC), bike maintenance, small plumbing tasks, electronics work, and general home repairs.

This manual provides essential information for the safe and effective use, maintenance, and troubleshooting of your WORKPRO Mini Pliers Wrench.
2. Safety Information
Always observe basic safety precautions when using any hand tool to reduce the risk of injury. Read and understand all instructions before operation.
General Safety Guidelines:
- Wear Eye Protection: Always wear ANSI-approved safety goggles or safety glasses with side shields.
- Inspect Tool Before Use: Check for any damage, wear, or loose parts. Do not use a damaged tool.
- Use the Correct Tool: Select the appropriate size and type of tool for the task.
- Keep Work Area Clean: Ensure your workspace is well-lit and free from clutter.
- Maintain a Secure Grip: Always hold the tool firmly to prevent slipping.
- Avoid Over-tightening: Do not apply excessive force that could damage the workpiece or the tool.
- Store Safely: Keep tools out of reach of children and in a dry, secure location.
3. Components
The WORKPRO Mini Pliers Wrench consists of the following primary components:
- Parallel Jaws: Smooth, flat gripping surfaces designed to prevent damage to fasteners.
- Adjustment Button: A blue button located on the side for quick and easy jaw width adjustment.
- Handle: Ergonomically designed for comfortable grip and leverage.
- Ratchet Mechanism: Allows for continuous tightening or loosening without repositioning the tool.
- Lanyard Hole: Located at the end of the handle for attaching a lanyard or keychain for easy access and storage.

4. Setup and Adjustment
The WORKPRO Mini Pliers Wrench features a quick adjustment system for efficient operation.
Adjusting Jaw Width:
- Press the Button: Locate the blue adjustment button on the side of the pliers wrench. Press and hold this button.
- Slide the Jaw: While holding the button, slide the movable jaw to the desired opening width. The tool offers 14 distinct adjustment positions.
- Release the Button: Release the button to lock the jaw in place. Ensure the jaw is securely locked before applying force.

5. Operating Instructions
The WORKPRO Mini Pliers Wrench is designed for gripping, holding, pressing, and bending applications, particularly where surface protection is critical.
Using the Pliers Wrench:
- Select Jaw Opening: Adjust the jaw width to fit the workpiece snugly, as described in Section 4.
- Position the Jaws: Place the parallel smooth jaws around the fastener or workpiece. Ensure full contact with the flat surfaces to maximize grip and prevent damage.
- Apply Pressure: Squeeze the handles firmly to engage the ratchet mechanism. The parallel jaws will maintain even pressure.
- Tighten or Loosen: Use the ratchet action to continuously tighten or loosen the fastener without needing to remove and reposition the tool.


Applications:
This tool is particularly effective for:
- Working on chrome-plated or delicate fittings without marring.
- Accessing fasteners in confined or hard-to-reach areas.
- Automotive maintenance, plumbing, and bicycle repairs.
- General assembly and disassembly tasks requiring precise grip.


6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your WORKPRO Mini Pliers Wrench.
Cleaning and Storage:
- Clean After Use: Wipe the pliers wrench clean with a dry cloth after each use to remove dirt, grease, and moisture.
- Lubrication: Periodically apply a light coat of machine oil to the pivot points and adjustment mechanism to ensure smooth operation and prevent corrosion.
- Anti-Rust Coating: The tool features an anti-rust coating, but regular cleaning and lubrication will further protect it from environmental elements.
- Storage: Store the tool in a dry environment, away from excessive humidity or corrosive substances.


7. Troubleshooting
If you encounter issues with your WORKPRO Mini Pliers Wrench, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Jaws are stiff or difficult to adjust. | Lack of lubrication, dirt accumulation. | Clean the adjustment mechanism and pivot points. Apply a light machine oil. |
| Tool slips on workpiece. | Incorrect jaw adjustment, excessive force, worn jaws. | Ensure jaws are adjusted snugly to the workpiece. Apply firm, even pressure. If jaws are worn, consider replacement. |
| Rust or corrosion appears. | Exposure to moisture or corrosive environments. | Clean immediately and apply anti-rust oil. Store in a dry place. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | W031503 |
| Item Weight | 2.47 ounces |
| Product Dimensions | 4.21 x 2 x 0.63 inches |
| Color | Sliver |
| Material | Alloy Steel |
| Power Source | Manual |
| Item Package Quantity | 1 |
| Handle Material | Alloy Steel |
| Usage | Twisting |
| Included Components | Pliers Wrench |
9. Warranty Information
WORKPRO tools are manufactured to high-quality standards and are warranted against defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official WORKPRO website.
Keep your purchase receipt as proof of purchase for any warranty claims.
10. Customer Support
For further assistance, technical support, or to inquire about replacement parts, please contact WORKPRO customer service:
- Website: Visit the WORKPRO Store on Amazon
- Manufacturer: HANGZHOU GREATSTAR INDUSTRIAL CO.,LTD
Please have your product model number (W031503) and purchase information ready when contacting support.
