High quality L-key set for imperial hexagonal socket screws in a practical clip fastener made of wear-resistant material, enabling secure storage of the L-keys as well as simple removal. The Hex-Plus profile offers a larger contact surface within the screw head, reducing notching effects to a minimum and almost completely eliminating the risk of damaging the screw recess. The ball-end on the long arm allows for reliable working even in difficult installation situations. The BlackLaser surface treatment provides outstanding surface protection, even against corrosion, and ensures a long service life. The tools are quickly accessible thanks to the laser-engraved and wear-resistant size markings on the L-keys.