For slotted 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 F 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 black finishing for corrosion protection