PrecisionBit, Design C 6.3 (1/4”) • for hexagon socket screws • everyday tool for all types of industry and trade screw applications, can be used manually and with machines • compatible external hexagon in accordance with DIN ISO 1173, compatible with socket D 6.3 • precise, true-to-size tips, optimal fit in the screw heads • color-coded by screw type so that you have the right bit, quickly at hand • durability and hardness are optimally balanced thus ensuring an extremely long service life • durable, special tool steel with attractive plasma coating for corrosion protection