Flat wrench Dedra 20 x 22 mm model 1479P

Flat wrench Dedra 20 x 22 mm model 1479P is a double-ended open wrench designed to engage hexagonal fasteners with 20 mm and 22 mm heads. Manufactured for manual use, the tool provides two fixed open jaws on opposite ends, enabling quick switching between sizes without adjustable components. The flat profile makes it suitable for working in narrow spaces and for applications where a slim tool is required to access recessed nuts or bolts.

Advantages

The Dedra 20 x 22 mm flat wrench offers a rigid, single-piece construction that reduces play at the jaw and provides reliable torque transfer. Its two fixed sizes eliminate the need for frequent tool changes and ensure consistent contact with the fastener faces. The slim, open-end design allows access in confined areas and along flat surfaces where box or socket wrenches cannot fit.

Suitable for

• Mechanical assembly and maintenance tasks
• Automotive repairs involving 20 mm or 22 mm hex bolts and nuts
• Plumbing and installation work with exposed fasteners
• General household repairs and DIY projects

Key specifications

• Open-end sizes: 20 mm and 22 mm
• Double-ended, flat/open wrench design
• Fixed jaw configuration for each end
• Slim profile for access in tight or recessed areas
• Intended for manual hand use

How to use

Select the end with the matching size for the fastener and position the open jaws fully over the nut or bolt head to ensure full face contact. Apply steady, controlled force in the required direction to tighten or loosen the fastener. When working in restricted spaces, use the flat profile to slide the wrench into position and avoid sudden impacts or excessive force that can deform the jaw or damage fastener corners.

Usage recommendations

For best results, inspect fastener faces for damage and use the correctly sized end to minimize rounding. Keep the wrench clean and free of oil or debris to maintain grip. Do not use the wrench as a hammer or lever beyond typical hand force; for high-torque requirements, consider using a larger tool or a different wrench type designed for higher torque.