Open-end wrench STANLEY 14 x 15 mm model 4-87-100

Open-end wrench STANLEY 14 x 15 mm model 4-87-100 is a compact hand tool designed for working with metric fasteners of 14 mm and 15 mm. The wrench features two fixed U-shaped jaws sized to engage flats on nuts and bolts, providing a straightforward tool for tightening and loosening in confined or easily accessible spaces. Designed by STANLEY for general-purpose use, this tool is suitable for automotive maintenance, household repairs and workshop tasks where a reliable, simple wrench is required.

Advantages

The STANLEY open-end wrench offers a slim profile for access in tight areas and two fixed jaw sizes in one tool, eliminating the need to switch wrenches when working with adjacent 14 mm and 15 mm fasteners. The simple, robust construction provides consistent contact with fastener flats for stable torque transfer while minimizing risk of rounding. The tool’s metric sizing aligns with common automotive and household bolt dimensions.

Suitable for

• Automotive maintenance and light vehicle repair
• Household plumbing and furniture assembly
• General workshop tasks and equipment servicing
• Jobs requiring compact access to 14 mm and 15 mm fasteners

Key specifications

• Wrench type: open-end (double-ended, fixed jaws)
• Sizes: 14 mm and 15 mm
• Intended fastener standard: metric (suitable for hexagonal nuts and bolts)
• Use case: hand operation for tightening and loosening
• Form factor: slim profile for improved access

How to use

Select the jaw size (14 mm or 15 mm) that matches the flat-to-flat dimension of the nut or bolt. Seat the open end fully onto the fastener flats to ensure even contact, then apply steady turning force in the required direction: clockwise to tighten, counterclockwise to loosen. Maintain alignment between the wrench and fastener axis to reduce slipping and avoid excessive leverage that could damage the tool or the fastener. Inspect the wrench before use for wear or deformation.

Usage recommendations

Use the STANLEY open-end wrench for hand-operated tasks within its intended size range. Avoid using the wrench as a hammer or prying device, and do not apply cheater bars or excessive force beyond normal hand torque. Store the tool in a dry place to prevent corrosion and check fastener condition to ensure safe engagement.