The wera 3950 pkl in 3 16 is a stainless steel imperial l-key offering a step up in torque capability, making it a strong choice for medium to larger hexagonal socket screws in corrosion-sensitive applications. At 154 mm in total length, the longer arm delivers greater leverage for more demanding fastening tasks. As with all keys in this range, the stainless steel construction prevents extraneous rust from being transferred to stainless fixings during use. The hex-plus profile ensures maximum contact within the screw head, significantly reducing the risk of notching and keeping the recess in good condition over many cycles of use. The long arm ball end facilitates off-axis screwdriving, allowing access to fixings that cannot be approached directly. Features and benefits: stainless steel construction prevents rust contamination on stainless fixings hex-plus profile maximises contact and minimises recess damage ball end on long arm for convenient angled round the corner screwdriving imperial sizing for hexagonal socket head screws specifications: size: 3 16 total length: 154 mm contents: 3950 pkl l-key, imperial, stainless, 3 16 x 154 mm