Double Open End Spanner 12×13(12pcs)

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A double open-end spanner, also known as a double-ended open wrench or spanner, is a hand tool designed for tightening or loosening nuts and bolts. It features two open-ended jaws of different sizes at opposite ends of the tool, allowing the user to work with two different-sized fasteners without the need to flip the tool. The open ends are typically U-shaped and parallel, providing a snug fit on the fastener’s flats. This design makes double open-end spanners useful in various applications where access is not restricted and where a quick switch between two different sizes of nuts or bolts is required.

1. Chrome vanadium steel #40
2. Sand blast & chrome plated
3. Extra thick handle
4. ASME standard

KSh 4,880.00 KSh 5,380.00


Double Open End Spanner uses

  1. Automotive Repair:
    • Changing tires: Double open-end spanners are often used to loosen and tighten lug nuts on vehicle wheels.
    • General engine maintenance: They are handy for accessing and working on different bolts and nuts in an automobile engine.
  2. Construction and Building Maintenance:
    • Assembling or disassembling scaffolding: Double open-end spanners can be used to tighten or loosen nuts and bolts in scaffolding structures.
    • Structural assembly: In construction projects, these spanners are used for various fastening applications.
  3. Home Repair and Maintenance:
    • Furniture assembly: When assembling furniture, a double open-end spanner may be needed to tighten nuts and bolts.
    • Plumbing repairs: These spanners can be useful for tightening or loosening nuts on pipes and plumbing fixtures.
  4. Machinery and Equipment Maintenance:
    • Industrial machinery: Double open-end spanners are commonly employed for maintenance tasks on machinery and equipment.
    • Appliance repairs: They can be used to tighten or loosen nuts on household appliances.
  5. Bicycle Repair:
    • Adjusting and tightening bolts: Double open-end spanners are useful for working on various components of bicycles, such as the handlebars, pedals, and brakes.
  6. Assembly and Manufacturing:
    • Assembly lines: In manufacturing processes, double open-end spanners are often used for quick and efficient assembly of products.
    • Maintenance of production machinery: These spanners are essential for maintaining and repairing machinery in industrial settings.
  7. Plumbing and Pipe Fittings:
    • Connecting and disconnecting pipes: Double open-end spanners are employed in plumbing work to tighten or loosen nuts on pipe fittings.
  8. Electrical Work:
    • Panel installation: In electrical installations, these spanners may be used for securing nuts on electrical panels.
    • General electrical maintenance: They can be handy for tasks involving nuts and bolts in electrical systems.
SKU: AHS52281 Category:


12 X 13 MM

Safety Precautions

  1. Wear Personal Protective Equipment (PPE):
    • Use appropriate PPE, including safety glasses or goggles, gloves, and, if necessary, hearing protection. This protects against potential hazards like flying debris, sharp edges, or excessive noise.
  2. Inspect the Spanner:
    • Before use, inspect the double open-end spanner for any signs of damage, such as cracks, bends, or wear. Ensure that the jaws are not worn or damaged, as this could affect their grip on nuts and bolts.
  3. Choose the Right Size:
    • Select the correct size of the spanner for the nut or bolt you are working on. Using the wrong size can lead to slippage and cause injuries or damage to the tool and fastener.
  4. Ensure Proper Engagement:
    • Make sure that the spanner’s jaws fully and securely engage with the flats of the nut or bolt. Partial engagement can lead to slipping, resulting in injuries or damage to the fastener.
  5. Apply Even Force:
    • When turning the spanner, apply even force. Avoid using excessive force, as this can lead to loss of control and potential injury. If a significant amount of force is required, consider using a longer-handled spanner or a different tool.
  6. Use Leverage Wisely:
    • Use the appropriate amount of leverage, considering the length of the spanner handle. Using extensions for additional leverage can be helpful, but be cautious not to overstrain the tool or compromise your balance.
  7. Secure the Workpiece:
    • Ensure that the workpiece is securely held or supported. This helps prevent unexpected movements or shifts that could lead to accidents.
  8. Work in a Well-lit Area:
    • Choose a well-lit work area to enhance visibility. This reduces the risk of errors and accidents due to poor lighting conditions.
  9. Avoid Using a Damaged Spanner:
    • Never use a double open-end spanner that is damaged, bent, or has worn-out jaws. Using a compromised tool can lead to accidents and injuries.
  10. Keep Hands Clear:
    • Keep your hands and body parts clear of moving parts and the path of the spanner. This minimizes the risk of injury in case of slippage or sudden movement.

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