What are the Best Sawzall Blades for Metal?

In general, the best sawzall blades for cutting metal have a higher TPI (Teeth Per Inch) and are bi-metal or carbide tipped. The right TPI and blade material depend on the type of metal being cut and its thickness. Cutting thinner metals, including sheet metal, requires a finer cut. Use 18-24 TPI bi-metal blades. For thicker metals such as steel pipe, angle irons, or tubing, use 14-18 TPI bi-metal blades. For aluminum, an 8-10 TPI blade is best. As far as the best brand of metal cutting blade, we like MK Morse and Diablo.

If you are cutting cast iron, stainless steel, and high-strength alloys, or for jobs like auto dismantling and fire & rescue, look for a carbide-tipped blade that is at least 8 TPI. If you're in the market for a carbide-tipped blade, go with the Diablo Steel Demon Carbide Tipped - it can cut through almost anything.

Getting the Most Life out of Your Metal Cutting Blade

Cutting metal with any blade will generate heat. A thicker, longer blade will last longer due to the metal mass absorbing and dissipating more heat. Running the saw at lower speeds will reduce heat buildup. If possible when getting the cut started, moving the saw back and forth along the cutting edge of the blade will help dissipate the heat by allowing the full length of teeth to be used. If your application permits, you can also use lubricant to reduce friction and heat.

Our best performing, longest lasting metal cutting sawzall blade is the Morse Master Cobalt 9” .050 thickness 14 TPI (teeth per inch) that cuts mild steel, stainless steel, and aluminum.

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