The Diablo DOS125CF3 1-1/4-Inch Starlock Carbide Oscillating Blades for Metal 3-Pack is a carbide-tooth oscillating blade set built for metal cutting with compatible oscillating multi-tools. This is a metal-cutting oscillating blade designed for cutting metal fast while lasting far longer than standard bi-metal blades. Model Number: DOS125CF3.

What matters here is blade life. Metal eats up ordinary blades in a hurry, especially when you are cutting embedded nails, screws, sheet metal, or light-gauge fasteners during remodel work. Diablo rates these high-performance carbide teeth for up to 50 times longer life versus standard bi-metal blades, which means fewer blade swaps and less time wasted once you are into the cut.

The 1-1/4 inch blade width gives you a practical balance of access and control. It is wide enough to stay stable in straight plunge and flush cuts, but still compact enough for detail work where a larger accessory gets clumsy. Diablo also lists a 1-1/2 inch cutting depth, which is useful when you need to reach through trim nails, metal brackets, or shallow metal sections without overworking the tool.

Diablo built this blade around optimized tooth geometry for metal applications, and that is not just spec-sheet talk. Tooth shape is what determines how quickly the blade starts, how smoothly it tracks, and how much heat builds up during the cut. Here, the design is tuned for faster cuts in metal while keeping the blade working cleaner instead of loading up and bogging down.

The Black I.C.E. coating is another practical feature. Heat is one of the main reasons metal-cutting accessories quit early, especially on long cuts or repeated plunge cuts. This coating is intended to improve heat resistance and chip evacuation, helping the teeth stay cooler and clearer so the blade keeps cutting instead of rubbing.

Fitment is a strong point on this blade. The Starlock interface is made for quick, secure installation on Fein and other Starlock oscillating tools, and Diablo also states compatibility with many non-Starlock multi-tools. That makes this a smart option for users who want one quality metal-cutting blade that can work across more than one tool in the shop or on the jobsite.

This 3-pack makes the most sense for contractors, remodelers, electricians, plumbers, metalworkers, and serious DIY users who burn through metal-cutting accessories regularly. If your oscillating multi-tool gets used for demo cuts, cutting off fasteners, trimming metal hardware, or flush cutting in tight spots, this is the kind of blade upgrade you feel right away in runtime, cut speed, and blade life.

Diablo DOS125CF3 1-1/4-Inch Starlock Carbide Oscillating Blades for Metal 3-Pack is the right blade upgrade if metal is killing your multi-tool accessories

This is a smart buy for anyone who uses an oscillating multi-tool on metal often enough to care about blade life and cut speed.

• Who it's for: Remodelers, electricians, plumbers, and tradespeople cutting screws, nails, brackets, and light metal in tight spaces.
• Why it stands out: Carbide teeth, metal-specific tooth geometry, and the Starlock interface give it a clear advantage over basic bi-metal blades.
• Worth knowing: You are paying for longer life and better performance, not a cheap throwaway blade. If you only cut soft wood once in a while, this is more blade than you need.

• What is this blade designed to cut? It is designed for metal cutting applications.
• Does it use a Starlock interface? Yes. This blade uses a Starlock interface for quick change on compatible tools.
• Will it fit only Starlock tools? No. Diablo states it is compatible with Fein and other Starlock tools and also with many non-Starlock multi-tools.
• How deep can it cut? Diablo lists a 1-1/2 inch cutting depth.