The fastest way to drill holes in cast iron

High-speed steel drill bits have high hardness, high wear resistance and high heat resistance, which allows them to cut through cast iron quickly and increase drilling efficiency. At the same time, the use of HSS drill bits can reduce the wear and heat generation of the drill bit and extend the life of the drill bit.

In addition, the use of coolant can reduce the temperature of the drill bit, prevent the drill bit from overheating, and improve the accuracy and efficiency of drilling, therefore, when drilling in cast iron, choosing the right HSS drill bit and using coolant is the best way to improve drilling efficiency.