The Milwaukee 48-40-4070 5-3/8 in. x 30 Teeth Metal & Stainless Cutting Circular Saw Blade is a carbide-tipped circular saw blade built for dry metal cutting. This is a circular saw blade designed for cutting metal, stainless steel, aluminum, strut, and threaded rod with a clean finish and less heat than abrasive options. Model Number: 48-40-4070.

What matters here is the way the blade is set up for real metal-cutting work. Milwaukee uses cobalt infused tungsten carbide to extend cutting life and help the teeth stay sharp longer. On the job, that means the blade is aimed at making repeated cuts in ferrous metal without giving up cut quality early. The 30-tooth design is a good fit when you need a balance of control, finish, and efficient cutting in thinner metal stock and common mechanical materials.

Milwaukee also calls out laser-cut vibration dampening slots, and that is not filler. Vibration control matters when you are cutting steel studs, channel, all-thread, or stainless sections because chatter can rough up the cut and make the saw feel less settled in your hands. By reducing heat, sound, and noise, the blade is built to stay more composed through the cut and leave a burr-reducing finish that cuts down on secondary cleanup.

This blade is designed for dry metal cutting, so no lubricant is required. That is a real convenience advantage for field work. You get less mess, less setup, and less downtime between cuts. Milwaukee also notes that the blade cuts cooler, which matters because hot material slows you down. If you can handle the workpiece sooner and spend less time waiting for things to cool off, your workflow stays moving.

From a fit and spec standpoint, this blade has a 5-3/8 in. diameter, a 20 mm arbor, and a thin 0.063 in. kerf. That thin kerf helps reduce drag and cutting resistance. If you are running a cordless metal-cutting circular saw, lower resistance can help stretch runtime and keep the saw from feeling bogged down in repetitive cuts. The blade is also described for use with cordless and corded circular saws, and it is specifically compatible with Milwaukee's M18 5-3/8 in. metal saw platform.

Build-wise, this is not an abrasive wheel pretending to be a saw blade. It uses a hardened alloy steel body with carbide teeth, which is the right setup when you want controlled, accurate cuts and less cleanup. Milwaukee lists an alternate top bevel tooth configuration, which lines up with its goal of cleaner edges and burr reduction rather than brute-force grinding.

Who is this blade for? Contractors cutting strut, threaded rod, metal framing members, stainless pieces, and aluminum on site. That includes electrical, mechanical, HVAC, plumbing, general construction, and metalworking trades. It also makes sense for serious DIY users who already own a compatible 5-3/8 in. metal-cutting saw and want cleaner cuts without the sparks, dust, and heat you usually fight with abrasive wheels.

Milwaukee 48-40-4070 Circular Saw Blade for Clean Metal Cuts

This is the kind of blade you buy when you are tired of hot, ugly cuts and extra cleanup after every piece of metal.

• Who it's for: Contractors and serious DIY users cutting steel, stainless, aluminum, strut, and all-thread with a compatible 5-3/8 in. metal-cutting circular saw.
• Why it stands out: The carbide build, 30-tooth layout, dry-cut design, and heat- and vibration-focused design all point to cleaner cuts and less wasted time after the saw stops.
• Worth knowing: This is a specialized metal-cutting blade, not a general-purpose framing blade. Match the 20 mm arbor and intended saw size before you buy.

• What does this blade cut? It is intended for metal cutting applications including stainless steel, steel, aluminum, strut, and threaded rod.
• Does this blade require lubricant? No. It is designed for dry metal cutting and does not require lubricant.
• What size saw does it fit? It uses a 5-3/8 in. blade diameter with a 20 mm arbor, so your saw needs to match those specifications.
• Is this a carbide blade? Yes. The blade material is listed as carbide, and Milwaukee highlights cobalt infused tungsten carbide for extended cutting life.