Introduction
This manual provides essential information for the safe and effective use of your Sunex 991410MA 15 mm Fully Polished Angle Head Wrench. This tool is forged from alloy steel and designed for durability, featuring both 15-degree and 60-degree angled ends to enhance access in various applications. Please read these instructions thoroughly before use to ensure proper operation and longevity of the tool.
Product Features
- Material: Constructed from drop-forged alloy steel for strength and durability.
- Angled Ends: Features both 15-degree and 60-degree angled ends, providing improved access in confined spaces.
- Finish: Fully polished surface for corrosion resistance and easy cleaning.
- Size: 15 mm opening for metric fasteners.
- Origin: Made in Taiwan, Province Of China.

Image: The Sunex 991410MA 15 mm Fully Polished Angle Head Wrench, showcasing its open-end design and angled heads. The model number "991410M SUNEX 15" is visible on the shaft.
Setup
- Unpacking: Carefully remove the wrench from its packaging.
- Initial Inspection: Before first use, inspect the wrench for any signs of damage, such as cracks, bends, or deformities. Do not use the tool if any damage is observed.
- Size Verification: Confirm that the wrench size (15 mm) matches the fastener you intend to work with.
Operating Instructions
Follow these guidelines for safe and effective operation of your angle head wrench:
- Select Correct Size: Always use a wrench that precisely fits the fastener. Using an oversized wrench can round off the fastener and damage the wrench.
- Proper Grip: Ensure a firm and secure grip on the wrench handle.
- Application of Force: Apply steady, even pressure. Avoid sudden jerking motions. Whenever possible, pull the wrench towards you rather than pushing, to prevent injury if the wrench slips.
- Utilize Angled Ends: The 15-degree and 60-degree angled ends are designed to provide better clearance and access in tight or obstructed areas. Choose the angle that offers the best leverage and fit for your specific task.
- Avoid Over-tightening: Do not use the wrench to over-tighten fasteners beyond their recommended torque specifications. For precise torque, use a torque wrench.
- Extension Use: Do not use pipe extensions or "cheater bars" on the wrench handle, as this can damage the tool and cause injury.
Maintenance
Proper maintenance ensures the longevity and performance of your wrench:
- Cleaning: After each use, wipe the wrench clean with a dry cloth to remove dirt, grease, and debris. For stubborn grime, a mild solvent can be used, followed by thorough drying.
- Storage: Store the wrench in a dry environment to prevent rust. Keep it away from corrosive materials.
- Inspection: Periodically inspect the wrench for wear, damage, or signs of fatigue. Replace the tool if any significant damage is found.
Troubleshooting
Most issues with a wrench are related to improper use. Consider the following:
- Wrench Slipping: Ensure the wrench is fully seated on the fastener. If the fastener is rounded or worn, the wrench may slip. Do not continue to use a slipping wrench; this can cause injury or further damage.
- Fastener Damage: If the fastener head is rounding off, you may be using the wrong size wrench or applying excessive force incorrectly. Stop and reassess the situation.
- Tool Damage: If the wrench bends or breaks, it indicates that it was subjected to forces beyond its design limits, possibly due to using an extension or extreme leverage.
Specifications
| Model Number | 991410MA |
| Brand | Sunex Tools |
| Size | 15 mm |
| Material | Alloy Steel |
| Head Style | Open End, 15-degree and 60-degree angled |
| Finish Type | Polished |
| Item Weight | 2.08 ounces (0.13 Pounds) |
| Product Dimensions | 1 x 0.25 x 7 inches |
| Measurement System | Metric |
Warranty and Support
This Sunex Tools product comes with a lifetime warranty. Please note that the warranty does not cover abuse. For warranty claims, technical support, or further inquiries, please contact Sunex Tools directly through their official website or customer service channels.
For more information, visit the Sunex Tools Store on Amazon.