For hexagon socket screws (inch) Compatible external hexagon in accordance with DIN ISO 1173, compatible with socket D 6.3 BitBlock made from #tide ocean material: 100% upvalued ocean-bound plastic, reduces fossil fuel consumption BitBlocks in various designs to meet every challenge, indispensable for professionals and DIY enthusiasts 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 Bits can be simply removed, simply press in on the sides and it will pop out again