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One of the most important factors to consider when choosing a thread tap drill bit is the material it is made of. High-speed steel (HSS) drill bits are commonly used for general-purpose tapping in materials such as steel, aluminum, and brass. They are durable, heat-resistant, and can be sharpened for extended use. For hard materials like stainless steel or hardened steel, cobalt drill bits are recommended due to their superior hardness and heat resistance.

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The 75mm drill bit is a staple in many workshops and construction sites due to its sizeable diameter, which allows for rapid drilling of large holes. Its scale lends it to a variety of tasks, from creating anchor points in walls for heavy fixtures to preparing sites for piping and ductwork. The bit's wide span also makes it a favorite for projects that demand ample clearance, such as electrical installations or when working with large timber.

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