Open-end offset wrench STANLEY 20 x 22 mm 4-87-808

STANLEY offset open-end wrench 20 x 22 mm (model 4-87-808) is a hand tool designed for tightening and loosening hex fasteners. The wrench features two offset open ends sized 20 mm and 22 mm, providing a compact profile and an angled approach that improves access to fasteners in confined or recessed areas. Constructed for regular workshop, automotive and maintenance use, this STANLEY wrench is intended to deliver a reliable grip on nuts and bolts while allowing clearance over nearby obstacles.

Advantages

The offset design reduces knuckle interference and enables turning in tight spaces where a straight wrench would be impractical. Dual-size open ends eliminate the need to switch tools when working with 20 mm and 22 mm fasteners, while the precision-formed jaws offer a secure fit to minimize rounding of hex heads. The solid construction and known STANLEY workmanship contribute to consistent performance and durability under typical repair and assembly conditions.

Suitable for

• Automotive repair and brake or suspension work where angled access is necessary
• General maintenance and service tasks in workshops and facilities
• Assembly and disassembly of machinery with recessed or closely spaced fasteners
• Plumbing and installation jobs requiring controlled torque in tight locations

Key specifications

• Wrench type: offset open-end wrench with two sizes
• Sizes: 20 mm and 22 mm open ends
• Material: heat-treated tooling steel (factory-treated for strength)
• Finish: protective surface treatment to resist corrosion
• Shape: angled/offset head geometry for improved clearance
• Application: manual operation for hexagonal nuts and bolts

How to use

Position the appropriate sized open end over the hex fastener so the wrench fully engages the flats of the nut or bolt. Apply steady force in the required direction, keeping the wrench aligned to avoid slipping and rounding. For confined spaces use the offset head to approach the fastener at an angle; where possible, use short, controlled strokes and reposition the tool as needed. Inspect the contact area before applying high torque and avoid using the wrench as a hammer or prying tool.

Usage recommendations

Use the 20 mm end for smaller hex fasteners and switch to the 22 mm end when larger nuts or bolts are present. Regularly check the wrench for deformation or wear and replace if jaw edges become rounded. For tasks requiring precise torque, combine this wrench with a calibrated torque tool on accessible fasteners rather than relying on hand force alone.