Flat Spanner Proxxon 14 x 15 mm PR23840, steel hand tool

Proxxon flat spanner PR23840 is a steel hand tool with two open-end jaw sizes: 14 mm and 15 mm. It is designed for manual tightening and loosening of metric nuts and bolts in workshop, maintenance and repair environments. The compact, flat form factor allows access in narrow spaces and simple torque transfer for routine assembly and disassembly tasks.

Advantages

The flat spanner is made from durable steel for reliable wear resistance and consistent jaw fit. Its dual-size open ends eliminate the need to switch tools for adjacent metric sizes and the thin profile enables use where bulkier wrenches cannot reach. The straightforward design provides predictable mechanical leverage and long service life under normal workshop conditions.

Suitable for

• Automotive maintenance and light repairs
• Bicycle assembly and adjustment
• Machinery servicing and on-site maintenance
• General assembly tasks using 14 mm and 15 mm fasteners

Key specifications

• Material: steel construction for strength and durability
• Jaw sizes: 14 mm and 15 mm open ends
• Type: flat/open-end spanner for manual use
• Profile: thin, flat design suitable for limited-access areas
• Typical applications: tightening and loosening metric nuts and bolts

How to use

Select the appropriate open end (14 mm or 15 mm) and place it fully over the hex nut or bolt head. Ensure the spanner seats squarely on the flats to avoid rounding. Apply steady manual force in the required direction to tighten or loosen the fastener. For improved control in tight spaces, position the flat spanner so the handle aligns with available clearance and avoid sudden high-torque impacts that could deform the jaw.

Usage recommendations

Inspect the spanner periodically for wear or deformation at the jaws. Use the correct jaw size for the fastener and avoid using the tool with cheater bars or extensions. For applications requiring defined torque values, use a calibrated torque wrench instead of relying on the flat spanner.