DEWALT DW3330 7-1/4-Inch 16-Tooth Metal-Cutting Circular Saw Blade

The DEWALT DW3330 is a 7-1/4-inch circular saw blade designed specifically for cutting metal. With a 16-tooth configuration, this blade uses a high-hardness composition to slice through steel, iron, and even cast iron. Whether you're doing demolition, fabricating steel brackets, or cutting pipe, this blade brings efficient cutting to your circular saw.

DEWALT DW3330 16-Tooth Metal-Cutting Saw Blade

The 7-1/4-inch diameter and 5/8-inch arbor fit most standard circular saws. The 16-tooth design removes material aggressively while keeping the cut reasonably smooth. This blade is often used for cutting steel studs, rebar, and sheet metal.

Can the DW3330 Cut Cast Iron?

Yes, the DW3330 is capable of cutting cast iron, but you need to use the correct technique. Because cast iron is brittle, let the blade do the work and avoid excessive pressure. Use a lower speed if your saw allows it, and keep a steady feed. With a thin kerf and hardened teeth, this blade can handle manageable pieces of cast iron pipe and fittings, though a slower cut is necessary to prevent overheating.

Tips for Cutting Cast Iron with the DW3330

• Clamp the material firmly to prevent vibration.
• Start the cut on a flat surface — avoid starting on a round pipe at the top.
• Use a straightedge guide to keep the cut true.
• Wear eye protection; cast iron chips are sharp.
• Clear chips frequently to keep the blade cool.

If you're cutting heavy cast iron regularly, a dedicated abrasive or diamond blade may be more efficient, but the DW3330 metal-cutting blade is a solid choice for occasional cast iron jobs.