Features: The 48mm hard alloy hole opener adopts technology, ensuring its superior cutting performances on various materials. Whether it is 0.5mm stainless steel or 2mm low carbon steel, it greatly reduces working hours and physical exertion. This drilling tool is crafted from hard alloy, and its lifespans is increased by three times compared to traditional steel drill bits. Even under high-intensity use, it can still maintain its sharpness. The equipped positioning drill bit can ensure the accuracy of each hole position, avoiding repetitive work and material waste caused by deviations. The positioning drill bit design can effectively improve the accuracy of drilling to ± 0.5mm. This hole opener is not only suitable for stainless steel, low-carbon steel, but also capable of cutting various materials such as copper, brass, and plastic. Suitable for various application scenarios such as construction, automotive maintenance, and home DIY. Users only need simple operations to complete the installation, without the need for additional tool. The overall installation time is less than 60 seconds, greatly improving work efficiency. Specifications: Component:Aluminum Alloy Total Length: 101mm/3.98''-102mm /4.02'' Opening Depth: 28mm/1.1'' Hand Diameter: 9.8mm/0.38''-10mm/0.39'' (Triangular Handle) Package Includes: 2Pcs Carbide Hole Saw note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.