25mm TiN Coating Power screwdriver bit manufacturer oem factory china

These are 4 pieces of color-coded short screwdriver bits with gold coating, made of S2 alloy steel. From left to right: Phillips bit, hex bit, Torx bit and slotted bit. Colored rings help quickly identify different sizes. The hexagonal shank fits quick-change chucks and impact drivers. Featuring high hardness, torsion resistance and wear resistance, they are widely used for screw driving jobs.