1. Metric ball head hexagonal screwdriver bits are made of S2 steel, which is high in strength, wear-resistant, anti-bending and anti-breaking. After heat treatment, the hardness is higher, not easy to deform, and durable. 2. The ball end hex bits are designed with strong magnetism, which can stably absorb the screws vertically or tilted and easily fix the screws, especially in a small space, which can make it more convenient to complete the work.3. The surface is sandblasted to remove surface oxides, increase corrosion resistance, reduce light reflection and glare, and avoid affecting work.4.
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