14Pcs Screwdriver Bit Set SL1.0-SL4.0 28Mm Magnetic Slotted Drill Bits

The screwdriver bit made of heat-treated S2 alloy steel, hardness up to HRC58-62, which is a high-hardness material commonly used in hardware and durable, anti-bending, and the surface is sandblasting for enhanced grip and corrosion resistance Exquisite workmanship, each edge can accurately lock the screws without damaging the screws and the screwdriver bit. The drill bit set have precise positioning and is not easily offset during operation, especially suitable for small spaces or situations that require precise operation, which can improve work efficiency and accuracy. The magnetic cross drill bits widely used in DIY hand-making, household appliances, precision instruments and most general repairs such as camera, game console, computer, etc. Notice: Do not turn the screws with mismatched size to avoid damage to both the screw and the drill.