Wrench Hazet 450N-10X11 10 mm / 11 mm, double open-end hand tool

Hazet 450N-10X11 is a compact double open-end wrench with fixed 10 mm and 11 mm jaw openings designed for manual fastening and loosening of hex fasteners. The tool combines two commonly used sizes in one solid, easy-to-handle unit, offering straightforward access in confined spaces and reliable mechanical engagement on bolts and nuts. Constructed for routine workshop and automotive tasks, this wrench provides consistent hand-applied torque where a precise fit is required.

Advantages

The double open-end design eliminates the need to switch between two separate wrenches for adjacent fastener sizes, saving time and reducing tool carry. Fixed jaw openings provide a stable contact surface that minimizes slippage on hex heads. The compact length improves reach into tighter areas compared with longer open-end tools, and the solid one-piece construction enhances durability under normal manual loads. The clearly marked sizes on each end allow quick identification during work.

Suitable for

• Automotive maintenance and light repairs
• Mechanical assembly and disassembly of machines
• General workshop and household fastening tasks
• Tight spaces where a short, two-size tool is advantageous

Key specifications

• Tool type: double open-end wrench
• Jaw sizes: 10 mm and 11 mm
• Material: high-strength hand tool steel (typical for Hazet tools)
• Construction: one-piece forged design for manual use
• Finish: corrosion-resistant surface treatment
• Hand operation: manual torque application, non-ratcheting

How to use

Select the appropriate jaw size (10 mm or 11 mm) and place the open end fully over the hex fastener, ensuring full seat contact on the flat sides. Apply steady hand force in the required direction to loosen or tighten the fastener. For improved control, position the wrench so that force is applied along the handle axis and avoid sudden impacts or use as a hammer. Inspect the contact fit before applying high torque to prevent rounding of fastener heads.

Usage recommendations

Use the wrench for hand-tightening and loosening within standard torque ranges appropriate for 10 mm and 11 mm fasteners. Avoid using extensions, cheater bars, or impact tools with this hand wrench. Store in a dry toolbox to maintain the corrosion-resistant finish and periodically check for wear or deformation that could affect safe operation.