The Diablo D0770FA 7-1/4 in. x 70 Tooth Steel Demon Carbide-Tipped Saw Blade for Metal is a metal cutting circular saw blade built for very thin ferrous metal and mild steel. This is a metal cutting circular saw blade designed for clean, controlled cuts in thin steel. Model Number: D0770FA. If you are using a 7-1/4 inch circular saw for sheet metal, roofing, decking, siding, or steel stud work, this blade is aimed at giving you a cleaner edge than an abrasive wheel while helping reduce heat, sparks, and burrs.

What matters here is how the blade is set up for the job. The 7-1/4 inch diameter, 70-tooth layout, and triple chip grind are all geared toward finer metal cutting rather than rough demolition work. That high tooth count helps the blade stay smooth through thin stock, which is exactly what you want when cutting material that can grab, chatter, or leave a ragged edge if the blade is too aggressive. Diablo also rates this blade for very thin steel and mild steel 18 gauge or thinner, so the use case is specific and clear.

Diablo uses TiCo high-density carbide on this Steel Demon blade, and that matters because carbide quality is a big part of how a metal cutting blade holds up. In practical terms, it helps the teeth resist wear better when you are making repeated cuts in ferrous material. The laser-cut steel blade body is there for flatness and smoother tracking, while the anti-vibration design helps cut noise and reduces the chatter that can beat up both the blade and the finish of the cut.

The Perma-Shield non-stick coating is not just there for looks. On metal cutting blades, friction and heat are what shorten life fast. A low-friction coating helps reduce heat buildup and material drag, especially when you are making a run of repetitive cuts. That means the blade keeps working cleaner for longer, and the saw does not feel like it is fighting the material as much.

Fitment is straightforward. This blade is designed for 7-1/4 inch circular saws and uses a 5/8 inch arbor. The blade is marked for a maximum speed of 5,800 RPM, so you want to match it with a saw that stays within that limit. That kind of compatibility detail matters on metal cutting accessories because the right arbor fit and speed rating are what keep the blade running true and safely.

This is not a general-purpose framing blade and it is not the right pick for thick structural steel. It is best for users who need a dedicated metal cutting saw blade for thin ferrous material and want a better finish than they would get from an abrasive disc. Roofers, siding crews, deck builders, remodelers, metal stud installers, and serious DIY users working with light-gauge steel will get the most out of it. If your work regularly involves clean cuts in thin steel with a 7-1/4 inch circular saw, this is the kind of blade that makes the setup make sense.

Diablo D0770FA 7-1/4 in. x 70 Tooth Steel Demon Carbide-Tipped Saw Blade for Metal is the right blade when clean thin-steel cuts matter

If you are cutting light-gauge steel with a 7-1/4 inch circular saw, this is the kind of dedicated blade that saves time by cutting cleaner and lasting longer than the wrong blade for the job.

• Who it's for: Contractors, metal stud crews, roofers, siding installers, and serious DIY users cutting thin ferrous metal and mild steel.
• Why it stands out: The 70-tooth triple chip design, TiCo carbide, anti-vibration features, and low-friction coating all point toward smoother cuts and better blade life in thin metal applications.
• Worth knowing: This blade is purpose-built for very thin steel and mild steel up to 18 gauge. It is not the blade to grab for thick steel or general wood cutting.

• What saws does this blade fit? It is designed for 7-1/4 inch circular saws with a 5/8 inch arbor.
• What material is it designed to cut? It is intended for very thin ferrous metals and mild steel, including material 18 gauge or thinner.
• What is the maximum blade speed? The blade is marked for a maximum speed of 5,800 RPM.
• Is this a wood cutting blade? No. This is a metal cutting saw blade built specifically for thin ferrous metal applications.