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Sealey

Sealey 1/2" Drive Non Sparking Bi Hexagon Socket Metric 1/2" 21mm

Check contents · United Kingdom

All retailer prices (3)

Item prices shown in GBP. Delivery is separate. We may earn a commission when you buy through our retailer links.

Power Tools Direct

Reported available

Observed 15 Oct 2026

£10.80

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Visit Power Tools Direct ↗

Tooled Up

Reported available

Observed 12 Oct 2026

£13.95

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Visit Tooled Up ↗

My Tool Shed

Reported available

Observed 12 Oct 2026

£13.95

Delivery: check retailer

Visit My Tool Shed ↗

Pack contents — retailer title

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About this tool

This 21mm non-sparking socket offers reliable performance for substantial fasteners in hazardous environments. Crafted from beryllium copper, this 1/2" drive socket eliminates spark risks whilst maintaining the strength and durability required for demanding industrial applications in potentially explosive atmospheres. The die-forged manufacturing process ensures superior robustness, whilst Sealey's WallDrive® 12-point design grips fasteners on their flat sides, distributing forces evenly to minimize rounding and extend the life of both socket and fastener. Features and Benefits: • 21mm socket for substantial metric fasteners • Spark-free beryllium copper construction • Die-forged strength for heavy-duty use • WallDrive® technology protects fastener integrity • Covered by lifetime guarantee Specifications: Brand: Premier Depth: Standard Drive: 1/2"Sq Material: Beryllium Copper Nett Weight: 0.130kg Size: 21mm

Retailer description · Tooled Up · Observed 12 Oct 2026. Check the retailer’s listing for full specifications and contents.

Product details

Brand: Sealey
Barcode / GTIN: 05054511752793
Category: Hand tools
Pack format: Check contents

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