Product Overview
The STANLEY 14 Piece Combination Wrench Set (Model 85-990) is designed for a wide range of fastening applications. This set features wrenches with both open and box ends, utilizing the Maxi-Drive system for enhanced torque application and reduced fastener rounding. Each wrench is constructed from durable Chrome Vanadium Steel and comes organized in a convenient pouch.

Image: The STANLEY 14 Piece Combination Wrench Set, neatly arranged in its black storage pouch. The set includes various SAE sizes, each featuring a polished chrome finish.
Setup
The STANLEY 14 Piece Combination Wrench Set requires minimal setup. Upon receiving the product, remove the wrenches from their packaging. The included pouch organizer is designed for convenient storage and transport. Ensure all wrenches are securely placed in their designated slots within the pouch to prevent loss and maintain organization.
Operating Instructions
These combination wrenches are designed for tightening and loosening fasteners. Each wrench features an open end and a box end of the same size.
- Selecting the Correct Size: Identify the correct wrench size that matches the fastener. The set includes SAE sizes: 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in, 1 in, 1 1/16 in, 1 1/8 in, and 1 1/4 in.
- Using the Open End: The open end is suitable for quick engagement with fasteners, especially in situations where access is limited from the top. Ensure the wrench jaws fully grip the fastener head to prevent slipping and rounding.
- Using the Box End: The box end provides a more secure grip on fasteners, distributing force around the entire perimeter of the fastener head. This reduces the risk of rounding and allows for greater torque application. The Maxi-Drive system further enhances this by contacting the fastener away from the corners.
- Applying Torque: Apply steady, even pressure to the wrench handle. Avoid using extension pipes or striking the wrench with a hammer, as this can damage the wrench or the fastener and may lead to injury.
- Safety Precautions: Always wear appropriate personal protective equipment, such as safety glasses, when using hand tools. Ensure the workpiece is stable and secured before applying force.
Maintenance
Proper maintenance ensures the longevity and performance of your STANLEY wrench set.
- Cleaning: After each use, wipe down the wrenches with a clean, dry cloth to remove dirt, grease, and debris. For stubborn grime, a mild degreaser can be used, followed by thorough drying.
- Storage: Store the wrenches in the provided pouch organizer in a dry environment to prevent rust. Avoid storing them in damp or corrosive conditions.
- Inspection: Periodically inspect each wrench for signs of wear, damage, or deformation. Do not use damaged wrenches, as they may slip and cause injury or further damage to fasteners.
- Lubrication: While not typically required for combination wrenches, a light coat of rust-preventative oil can be applied if storing in a high-humidity environment.
Troubleshooting
Most issues encountered with combination wrenches relate to improper use or selection.
| Problem | Possible Cause | Solution |
|---|---|---|
| Wrench slips on fastener | Incorrect wrench size; Worn fastener head; Improper engagement; Excessive force. | Ensure correct size is used. Fully engage wrench on fastener. Use the box end for better grip. Replace worn fasteners. |
| Fastener head rounding | Incorrect wrench size; Worn wrench jaws; Slipping. | Verify wrench size. Use the box end. Ensure full engagement. Replace damaged wrenches. |
| Wrench feels loose or wobbly | Not applicable for solid combination wrenches. | Inspect for damage. If damaged, discontinue use. |
Specifications
- Model: 85-990
- Brand: STANLEY
- Material: Chrome Vanadium Steel
- Finish: Satin Finish
- Color: Stainless Steel
- Item Weight: 11.3 Pounds (approx. 5.13 kg)
- Product Dimensions: 1 x 1 x 1 inches (packaging/overall, specific wrench dimensions vary)
- Measuring System: Inch (SAE)
- Opening Sizes: 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in, 1 in, 1 1/16 in, 1 1/8 in, 1 1/4 in
- Features: Maxi-Drive system, Pouch Organizer included
- Compliance: Designed to meet or exceed ANSI specifications
Warranty Information
STANLEY products are manufactured to high quality standards and are typically backed by a limited lifetime warranty against defects in material and workmanship. For specific warranty details, claims, or service, please refer to the official STANLEY website or contact their customer support directly. Keep your proof of purchase for warranty validation.
Note: Warranty terms may vary by region and product.
Support
For further assistance, technical support, or inquiries regarding your STANLEY 14 Piece Combination Wrench Set, please visit the official STANLEY website or contact their customer service department.
STANLEY Official Website: www.stanleytools.com
Please note that contact methods and hours of operation may vary.





