Flat Wrench Topex 20 x 22 mm, open-end double-sided steel spanner

Flat wrench Topex 20 x 22 mm, open-end double-sided steel spanner is a compact hand tool designed for fastening and loosening hexagonal nuts and bolts with 20 mm and 22 mm across-flats dimensions. The spanner features a flat, double-ended open jaw design that provides access in narrow workspaces and offers a simple, durable solution for routine mechanical, plumbing, and assembly tasks. Constructed from steel, the tool balances strength and a slim profile suitable for handheld use in home workshops and professional settings where those specific sizes are required.

Advantages

The double-ended configuration combines two common sizes in one tool, reducing the number of wrenches needed. Its flat, low-profile shape enables access to fasteners in confined or recessed areas. Steel construction ensures resistance to bending under typical torque levels and provides long service life with normal maintenance. The open-end jaws allow quick placement and removal on nuts and bolts without the need to slide the tool over the fastener.

Suitable for

• Tight or narrow spaces where a slim wrench is required
• Mechanical maintenance and light machinery repairs
• Plumbing tasks involving exposed nuts and fittings
• Assembly and disassembly of furniture or equipment with 20 mm and 22 mm fasteners
• General DIY projects and on-site service work

Key specifications

• Type: flat, open-end double-sided spanner
• Material: steel
• Sizes: 20 mm and 22 mm across flats
• Profile: slim/low-profile for narrow access
• Ends: two open jaws, opposite sizes

How to use

Select the jaw size that matches the nut or bolt head. Position the open end over the fastener so the flat faces engage the flats of the nut or bolt, then apply steady turning force in the required direction. For tightening, turn clockwise; for loosening, turn counterclockwise. Ensure the wrench is fully seated on the fastener to minimize rounding. Use controlled force and avoid excessive impact or levering beyond the tool’s intended capacity.

Usage recommendations

Regularly inspect the spanner for wear or deformation, clean after use, and store in a dry place to prevent corrosion. For stubborn or corroded fasteners, apply penetrating lubricant and use appropriate-size sockets or adjustable wrenches if higher torque is required. Do not use the wrench as a hammer or pry bar.