High quality set of L-keys for hexagonal socket screws in a practical clip made of wear-free material for lasting secure retention of the L-keys, with easy removal when required. Hex-Plus L-keys provide larger contact surfaces on the screw head. The notching effect is thereby reduced to a minimum; the destruction of the screw head is almost eliminated. The ball on the long arm allows safe working even in difficult mounting positions. The BlackLaser surface treatment provides excellent surface protection, corrosion resistance and long life. Laser coated abrasion-resistant size markings on the L-keys for quick access.