Metric Flat Hex Head Size: H5 (5mm)Hex Shank Size: 1/4"Overall Length: 100mm (4")Hardness: HRC59-61 (The recognized stable hardness is around HRC60.)Color: Black + OrangePackage Content: 2pcs x Hex Head Drill Bit WrenchThe H value indicates the size of the hexagonal head. The larger the value, the larger the head, and the smaller the value, the smaller the head.Industrial grade hex flat tip screwdriver bit is made from specially heat-treated S2 steel for superior strength, hardness, and durability, with a black phosphate coating that forms a thin film to effectively block moisture and oxygen, reducing metal oxidation and corrosion while also providing a lubricating effect to enhance wear resistance.The hexagonal head of the screw driver is magnetized for easy use.
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