General description The Irwin HSS TCT Tip Drill Bit is designed for precise drilling in hardened materials such as steel, cast iron, bronze alloys, and manganese steel. It features a tungsten carbide tip for durability and efficiency, capable of drilling materials up to 50 Rockwell C hardness. The drill bit body is made from hardened chrome vanadium steel with a hardness of 56 Rockwell C, making it ideal for various drilling applications requiring accuracy and durability. Technical specifications Type: TCT (Tungsten Carbide Tipped) drill bit Diameter: 9.5mm Overall length: 125mm Working length: 81mm Material: Chrome vanadium steel with tungsten carbide tip Hardness: Drill body 56 HRC, tip up to 50 HRC Compatibility and accessories Compatible with stationary drill presses and drilling machines Requires coolant, such as a 3-6% emulsion, to prolong tool life Installation Insert the drill bit into the drill chuck, ensuring it is securely tightened Use appropriate speed and feed rates for