The Wera 3950 PKL in 5mm is a heavy-use size well matched to M6 socket head screws, one of the most prevalent fixings across engineering, construction, and industrial maintenance — and an excellent choice where stainless fasteners are specified. The stainless steel body prevents any extraneous rust from contaminating stainless fixings, ensuring material and aesthetic integrity are preserved. Wera's Hex-Plus profile maximises contact within the screw recess, reducing notching forces and greatly lowering the risk of recess damage under heavy or repeated loading. The long arm's ball end facilitates off-axis driving, allowing you to work efficiently in spaces where straight-on access is restricted. Features and Benefits: • Stainless steel construction prevents extraneous rust on stainless fixings • Hex-Plus profile protects screw recesses and extends screw life • Ball end on long arm for angled "round the corner" screwdriving • Metric sizing Contents: 3950 PKL L-key, metric, stainless, 5 x 154 mm Specifications: Key Size: 5mm Overall Length: 154mm

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