1. Handle material to be aviation aluminum alloy 2. Bit material to be chrome molybdenum steel, super hardness 3. The 3D screwdriver tip fits the screw precisely, so the teeth are not easy to slip 4. Aviation aluminum handle suitable for ergonomic design, exquisite and meticulous, no matter which gesture is comfortable 5. Suitable for internal and external screws 6. Suitable for dismantling internal Y-shaped, star-shaped, Internal cross and cross screws 7. Suitable for detachable five-star screws at the bottom of the iPhone series 8. 4 kinds of anti-slip lines Different models and different styles
