APPLY TO - This reduced shank drill bit is well-suited for low-intensity applications and DIY projects. It can handle a variety of materials, including thin stainless steel, steel, aluminum alloy, copper, plastics, and wood, making it perfect for daily equipment maintenance and repairs.SPECIFICATION:-Cutting Edge Diameter: 13 mm-Shank Diameter: 10mm;-Flute Length: 76.2mm/3 inch-Total Length: 152.4mm/6 inch-Point Angle: 135°g;QUANTITY INCLUDED - Set contains 1 piece x drill bitADVANTAGE - The 4341 high-speed steel material has high hardness, good wear resistance, and toughness, enabling it to withstand significant impact without easily breaking. Black and Gold Finish can further enhance the drill bit's wear and corrosion resistance, thereby extending its service life. With a 118-degree pointed angle, these drill bits facilitate faster feed rates and higher processing efficiency.EXPLAIN - These drill bits are suitable for general thin metal machining and light-duty applications at low speeds, the use of coolant during the drilling process effectively reduces temperatures, extends tool life, and improves machining results.NOTE - Maintain a 90° vertical angle between the drill bit and the workpiece for optimal performance. For larger diameter holes, first drill a small guide hole to ensure precision and reduce bit stress. This drill bit is not suitable for stainless steel or other hardened metals.