1. The batch head is made of high hardness alloy steel forging, high temperature sudden fire, tough and durable, high precision matching screws, not easy to damage the screw batch head 2. 360-degree bearing rotation, smooth operation without lag, save time and energy 3. Slim mesh handle, non-slip strong 4. Magnetic batch head, easy adsorption, do not have to worry about disassembling the screws fall lost 5. Suitable for cell phones, cameras, eyeglasses and other precision objects maintenance 6. Material: alloy steel 7. Hardness: HRC56-59 degrees 8. Size: batch head about 36mm, batch rod about 97mm
