Open-end wrench Kuźnia Sułkowice 16 x 17 mm (model 1-131-36-101)

Open-end wrench Kuźnia Sułkowice 16 x 17 mm (model 1-131-36-101) is a double-headed hand tool manufactured for turning and holding hexagonal nuts and bolts with 16 mm and 17 mm across-flats dimensions. The tool combines two commonly used metric sizes in a single, compact wrench to simplify tasks that require switching between adjacent fastener sizes. Its metal construction provides the stiffness and contact area needed for effective torque transmission in workshop, garage, and field environments.

Advantages

The open-end wrench offers immediate access to fasteners in confined spaces where boxed or socket tools may not fit, and dual-size ends reduce the number of separate wrenches required. The simple geometry of the jaw ensures direct contact with the nut or bolt flats for efficient torque transfer while minimizing rounding of fastener corners when used correctly. The durable metal construction delivers long-lasting service under normal workshop and maintenance conditions.

Suitable for

• Automotive repair and maintenance
• Assembly and disassembly of machinery and equipment
• On-site service and field repairs
• General household and workshop fastening tasks

Key specifications

• Type: open-end (double-headed) wrench
• Sizes: 16 mm and 17 mm across flats
• Material: forged metal construction for rigidity and durability
• Finish: workshop-finish metal surface suitable for workshop use
• Profile: standard open jaw for access to flat-sided fasteners

How to use

Select the jaw that matches the fastener size (16 mm or 17 mm) and position the wrench so the open jaw fully engages the flats of the nut or bolt. Apply steady, controlled force in the intended rotation direction, keeping the wrench aligned with the fastener to avoid slipping. For higher torque requirements, ensure correct seating on the flats and reposition the wrench between turns rather than levering from an angle that could damage the fastener. After use, store the wrench in a tool rack or toolbox to protect the working faces from damage.

Usage recommendations

For reliable operation, use the wrench on properly sized hexagonal fasteners only and avoid using cheater bars or extensions that can overstress the tool. Inspect the jaws regularly for wear or deformation and replace the tool when the contact surfaces show rounding or damage that could compromise grip and safety.