Can you cut through cast iron with a hacksaw?

Yes, you can cut through cast iron with a hacksaw, but it requires a suitable blade designed for metal cutting, ideally with high teeth per inch (TPI) for better efficiency. However, this method can be slow and labor-intensive due to the hardness of cast iron. For larger or thicker pieces, using a power tool like a reciprocating saw or an angle grinder with a metal cutting blade is often more effective. Always take proper safety precautions when cutting metal.