Diablo D0660F 6-1/2 in. x 60-Tooth Steel Demon Circular Saw Blade for Thin Metal is a 6-1/2 inch carbide-tipped circular saw blade made for cutting thin mild steel. This is a circular saw blade designed for thin metal cutting in materials such as steel studs, decking, roofing, sheet metal, siding, and corrugated sheet. Model Number: D0660F. If you need cleaner cuts in light-gauge steel without the mess and short life of abrasive wheels, this blade is aimed right at that job.

The big story here is the tooth design and carbide. Diablo uses TiCo Hi-Density Carbide for mild steel applications, and pairs it with a 60-tooth Triple Chip Grind pattern. In practical terms, that means this metal cutting circular saw blade is built to leave a cleaner edge with less burr than a rougher cutting setup. For anyone cutting framing track, thin sheet, roofing panels, or decking, that can mean less filing, less edge cleanup, and less wasted time before the next step.

This blade is also set up to cut fast without asking as much from the saw. The thin kerf body removes less material, so the cut takes less effort than a heavier kerf blade. That matters whether you are running a corded circular saw all day or using a cordless circular saw where efficiency counts. Diablo specifically calls out use in both corded and cordless saws, which makes this a practical option if your jobsite moves between shop work and punch-list cuts in the field.

Durability is more than just the carbide tips. Diablo adds Tri-Metal Shock Resistant Brazing to help the carbide hold up under impact, which is important in metal cutting where vibration and sudden load changes can punish the tips. The Perma-SHIELD coating is there to resist heat buildup, gumming, and corrosion. That does not just sound good on paper. Heat control and cleaner blade surfaces help the blade stay more consistent over repeated cuts in thin metal.

Accuracy and blade stability also get attention. The laser-cut arbor is designed to reduce vibration and premature wear for more accurate blade rotation. That matters when you are trying to follow a line through thin gauge material that likes to chatter, flex, or grab if the setup is sloppy. Combined with the high tooth count, this is clearly a blade built for control and finish quality, not rough demolition work.

Fitment is straightforward. The blade diameter is 6-1/2 in. and the arbor is 5/8 in., making it a match for many 6-1/2 inch circular saws that accept that arbor size. The stated maximum speed is 8,000 RPM, so the saw you pair it with needs to stay within that limit. This blade is intended for very thin mild steels, specifically noted as 12-gauge, 97 mil or thinner. That use-case matters because choosing the right blade for the material is what gets you the clean cut and blade life this model is designed to deliver.

Who should buy it? Metal framers, roofers, remodelers, siding crews, HVAC installers, and serious DIY users cutting light-gauge steel will get the most from it. If your work involves thin mild steel and you want a dedicated 6-1/2 inch thin metal cutting blade instead of trying to make a general-purpose blade do the job, this is the right kind of accessory. If you are cutting heavier steel outside the stated range, you should step up to a blade built for that material instead.

Diablo D0660F 6-1/2 in. x 60-Tooth Steel Demon Circular Saw Blade for Thin Metal is the right blade when clean edges matter

This is the kind of blade you buy when abrasive wheels are slowing you down and leaving you with more cleanup than you want.

• Who it's for: Anyone cutting light-gauge mild steel with a 6-1/2 in. circular saw, especially steel stud crews, roofing installers, HVAC techs, and remodelers.
• Why it stands out: The TiCo carbide, 60-tooth Triple Chip Grind, thin kerf body, and vibration-reducing arbor all point to cleaner cuts and longer life in thin metal applications.
• Worth knowing: This is not a general anything-goes blade. It is purpose-built for very thin mild steel, so match it to the right material and saw speed to get the result it was designed for.

• What type of material is this blade designed to cut? It is designed for very thin mild steel, including steel studs, decking, roofing, sheet metal, siding, and corrugated sheets.
• What saws does it fit? It fits compatible 6-1/2 in. circular saws and cordless circular saws that use a 5/8 in. arbor.
• How many teeth does the blade have? This blade has 60 teeth and uses a Triple Chip Grind tooth pattern for cleaner thin-metal cutting.
• What is the maximum rated speed? The listed maximum speed is 8,000 RPM.