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B&Q£10.62Visit shop B&Q - Double Ended Metric 20mm + 22mm Ring Obstruction Spanner Wrench 75 Offset
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The AB Tools 20mm x 22mm Double Ended Ring Obstruction Spanner is designed for professional mechanics and home DIY enthusiasts who need to navigate tight engine bays or cramped mechanical spaces. Its primary benefit is the 75-degree offset, which provides the necessary clearance for knuckles and tools in recessed areas, though users should note that the specialized shape requires careful positioning to ensure full bolt seating compared to a standard straight wrench.
| Model Part Number | AU836 |
|---|---|
| Brand | AB Tools |
No, this spanner is precision-engineered for 20mm and 22mm metric fasteners. Using it on imperial sizes may cause damage to the bolt head.
No, this is a hand tool. Using it with impact guns or power tools will likely damage the wrench and may cause injury.
Wipe with a clean rag after use and avoid dragging the tool across rough concrete surfaces to prevent deep scratches.
The spanner has a total length of 290mm.
The 75-degree offset is specifically designed to work around physical obstructions that would prevent a standard flat spanner from reaching the nut or bolt.
Ensure the fastener is free of heavy rust or debris and verify the 12-point ring is perfectly aligned with the bolt head profile.
Check that the ring is fully engaged with the bolt head. If the bolt head is rounded, consider using a penetrating oil or a dedicated bolt-extraction tool.
This tool requires no formal setup; simply select the 20mm or 22mm end based on your fastener size. It is compatible with standard metric bolts and nuts used in automotive, agricultural, and industrial machinery. To maintain the spanner, wipe it down with a clean, dry cloth after use to remove oil, grease, and solvent residue. Store the tool in a dry environment or a tool roll to protect the polished finish from deep scratching or corrosive moisture.
