APPLY TO - Reduced Drill Bits have become essential tools for household DIY projects due to their simple structure and user-friendly operation, making them suitable for non-professional users to get started quickly. Applications include furniture assembly and modification, wall-mounted decorations, metal/plastic parts processing, and gardening and repairs.SPECIFICATION:-Cutting Edge Diameter: 13mmShank Diameter: 12mm-Cutting Edge Length: 76.2mm/3 inch-Total Length: 152.4mm/6 inch-Point Angle: 118°;QUANTITY INCLUDED - Set contains 1pcs x drill bitADVANTAGE - High-speed steel M35 is a type of high-speed steel that contains 5% cobalt. It has higher hardness and wear resistance, with cobalt ensuring the hardness and toughness of the high-speed steel. It is suitable for drilling various metals, such as stainless steel, iron, copper, aluminum alloys, and cast iron. Nitriding Black Finish can further enhance the drill bit's wear and corrosion resistance, thereby extending drill bits' service life.EXPLAIN - The use of coolant during the drilling process effectively reduces temperatures, extends tool life, and improves machining results.