Flat wrench Dedra 18 x 19 mm model 1478

Flat wrench Dedra 18 x 19 mm model 1478 is a hand tool with opposing open ends sized for 18 mm and 19 mm hexagonal nuts and bolts. Designed for general mechanical and household use, the compact, flat profile provides access in confined spaces and allows manual torque application where a full-size spanner or socket may not fit. The tool is intended for tasks that require turning, tightening, or loosening fasteners of the specified sizes.

Advantages

The flat wrench features two open-ended jaws in adjacent sizes, enabling quick switching between 18 mm and 19 mm fasteners without changing tools. Its compact, slim construction reduces interference with nearby components and makes it practical for working in tight assemblies. The simple, hand-operated design offers direct tactile feedback and precise control over applied torque for delicate fittings and routine maintenance.

Suitable for

• Tightening and loosening 18 mm and 19 mm hex nuts and bolts
• Mechanical repairs on bicycles, automotive, and light machinery
• Household assembly and maintenance tasks in confined spaces
• Plumbing fixtures and small construction fittings where open-end access is required

Key specifications

• Type: Flat open-end wrench with two opposing sizes
• Sizes: 18 mm and 19 mm open ends
• Material: hand tool metal construction suitable for manual use (steel alloy typical for wrenches)
• Profile: slim, flat design for access in restricted spaces
• Operation: manual, single-piece wrench for direct torque application

How to use

Select the open end that matches the fastener size (18 mm or 19 mm) and position the jaws fully over the nut or bolt head. Apply steady manual force in the required direction to loosen or tighten the fastener, taking care to maintain full jaw contact to avoid rounding edges. For higher torque demands, use controlled incremental turns and reposition the wrench as necessary. After use, store the wrench in a toolbox or on a tool rack to prevent corrosion and mechanical damage.

Usage recommendations

Use the flat wrench for tasks within its size range and avoid applying impact or excessive force beyond manual capability. Inspect the jaws before use for wear or deformation, and complement this wrench with matched tools (ratchet, socket set) when greater torque or faster operation is required.