The PALMERA socket manufacturing process is based on the principles of quality, resitance, sturdiness and functionality. A wide, comprehensive range of sockets and accessories, with over 524 part numbers. Manufactured in chrome vanadium, the best material for socket production. Hardnesses of between HRC 44 and 48 (40-46 for 1"), and optimum hardness-strength ratio. Meet UNE 16501, 16503-1 and 16507-1 and ISO 1171-1, 1174-1 and 2725-1 standards. The New Professional Profile (NPP) for PALMERA socket wrenches redistributes forces and tensions onto the flats of the nuts, thereby preventing damage and wear to the hexagonal edges of nuts and screws. Moreover, because the force is applied to the flats of the nut, this profile even enables work with nuts that have already been rounded. The NPP profile allows for a significant reduction in the external diameters of sockets, thereby increasing wrench access in tight situations