The Wera 3950 PKL in 5/16" is a heavy-duty stainless steel imperial L-key intended for larger hexagonal socket screws where significant torque is required. At 195 mm in total length, this size is well suited to structural and industrial fastening tasks whilst retaining the corrosion resistance benefits of stainless steel construction. The all-stainless build eliminates extraneous rust transfer to stainless fixings, making this key appropriate for use in food processing, pharmaceutical, marine, and other demanding environments. Wera's Hex-Plus profile provides a greatly increased contact surface within the screw recess, protecting the head from notching and rounding even under sustained, higher-torque use. The long arm ball end allows the tool axis to be angled away from the screwdriving axis, providing access to fixings in otherwise awkward positions. Features and Benefits: • Stainless steel construction prevents rust contamination of stainless fixings • Hex-Plus profile protects screw recesses under higher-torque use • Ball end on long arm for angled "round the corner" screwdriving • Imperial sizing for hexagonal socket head screws Specifications: Size: 5/16" Total Length: 195 mm Contents: 3950 PKL L-key, Imperial, stainless, 5/16" x 195 mm

Retailer feed snapshot imported on 21 October 2026. Not live-checked or automatically refreshed. Confirm delivery, stock and final price at the retailer.