PrecisionBit, shape C 6.3 (1/4”) for square socket screws (Robertson):

• 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 black finishing for corrosion protection.