Open Box Combination Wrench Rockforce 14x17 mm

The Open Box Combination Wrench Rockforce 14x17 mm is a dual-ended hand tool featuring an open (box) jaw on one end and a ring (closed) end on the other. Engineered for metric fasteners, this combination wrench covers two common sizes—14 mm and 17 mm—allowing users to switch between fastener types without changing tools. Constructed from solid steel, the wrench is designed to transfer torque effectively while providing durability for repeated use in automotive, workshop and domestic maintenance tasks. Its compact profile makes it suitable for use in confined spaces where access is limited.

Advantages

The solid steel construction ensures reliable torque transfer and extended service life under normal workshop and household conditions. Dual-ended design reduces the need to carry multiple wrenches, saving time during repair or assembly work. The ring end offers better grip on hexagonal nuts and bolts to reduce rounding, while the open end allows quick engagement on fasteners where the ring end cannot reach. The compact size and metric sizing make it compatible with common automotive and machinery fittings.

Suitable for

• Tightening and loosening 14 mm and 17 mm metric nuts and bolts
• Automotive repair and maintenance
• General workshop assembly and disassembly
• Home maintenance tasks in tight or restricted areas

Key specifications

• Sizes: 14 mm and 17 mm
• Ends: open (box) on one side, ring (closed) on the other
• Material: solid steel construction
• Finish: corrosion-resistant surface treatment (factory applied)
• Length: compact profile for confined-space access

How to use

Select the appropriate end for the fastener: use the ring end for maximum contact and reduced risk of rounding, or the open end for quick placement on bolts where the ring cannot be applied. Place the wrench fully over the nut or bolt head, ensure a firm seating, and apply steady force in the direction required to tighten or loosen. For higher torque requirements, use controlled, gradual force and reposition as needed to maintain safe leverage. After use, clean off debris and store the wrench in a tool roll or organizer to prevent corrosion and damage.

Usage recommendations

The tool is intended for hand use on correctly sized metric fasteners. Avoid using cheater bars or excessive impact force. Inspect the wrench regularly for wear or deformation and replace it if the ends become rounded or compromised.