Wrench (flat) Proline 13 x 17 mm, model 34317

Flat combination wrench Proline 13 x 17 mm (model 34317) is a hand tool designed for tightening and loosening hex fasteners with 13 mm and 17 mm heads. The tool combines an open-end jaw on one side and a box (ring) end on the other, providing versatile engagement options for manual mechanical, automotive and household repairs. Its slim profile allows access in confined spaces while the solid construction ensures reliable torque transfer during assembly and maintenance tasks.

Advantages

This Proline flat combination wrench offers two working ends for different fastening situations, reducing the need to switch tools. The slim design improves reach into tight or recessed areas, and the solid one-piece construction delivers consistent torque and durability under normal hand-tool use. The box end provides a secure grip on hex heads to minimise slippage, while the open end allows quick application and removal on exposed fasteners.

Suitable for

• Tightening and loosening hex nuts and bolts of 13 mm and 17 mm size
• Automotive maintenance and repair tasks where these sizes are common
• Mechanical assembly and disassembly in workshops
• Household repairs and installations that require manual wrenches

Key specifications

• Type: flat combination wrench with open-end and box-end
• Sizes: 13 mm and 17 mm working ends
• Profile: slim, designed for access in confined spaces
• Material and construction: solid one-piece construction for reliable torque transfer
• Use: manual hand tool for mechanical, automotive and household applications

How to use

Select the end matching the fastener size (13 mm or 17 mm) and place the wrench fully over the nut or bolt head. For maximum engagement use the box end where space allows; use the open end for quick positioning or when the box end cannot reach. Apply steady manual force, keeping the wrench aligned with the fastener to avoid rounding. Avoid using cheater bars or hammering the tool; use appropriate torque procedures for critical assemblies.

Usage recommendations

Inspect the wrench before use for signs of wear or damage and keep the working faces clean. Use the correct size to reduce fastener and tool damage. Store the wrench in a toolbox or on a rack to maintain condition and prevent corrosion; apply light lubrication as needed for long-term storage.