The best blade for non-ferrous metals has teeth designed for soft metal, and you should keep it for that work only. Used this way, it gives you a clean edge on the cut instead of a ragged one.
Non-ferrous metals include aluminum, brass and copper [1]. A burr is the thin, raised ridge left along a cut edge, and it comes from two causes. The first is tooth design: blades made for these softer metals deliver smooth, burr-free cuts [1].
The second cause is contamination. Do not cut brass, copper, bronze or aluminum with a blade used on steel or cast iron [2]. Steel left on the teeth can spoil the next soft-metal cut, so the rest of this article covers blade types, what to avoid and how to choose one for your project.
Why are triple-chip grind blades good for soft metals?
Triple-chip grind blades are made for soft metals like aluminum, brass and copper. [1] Their tooth shape and low hook angle are the reason they suit these metals.
Here is what each feature does for you:
Triple-chip grind teeth: This tooth shape is built for softer metals, so the blade suits thin aluminum, brass and copper work. [1]
Low hook angle: The hook angle is how far the tooth face leans forward. A low angle takes a gentler bite, which helps keep the blade from grabbing and tearing the metal edge.
Best fit: Thin sheet, tube and trim stock, where a torn edge shows most.
Picture a homeowner cutting aluminum trim for a window. A general blade may catch the thin edge and leave a ragged lip that you have to file down. A triple-chip grind blade with a low hook angle is designed to cut more smoothly, so the trim can go straight onto the frame with little cleanup.
This smooth result is the point of the design. With triple-chip grind teeth and a low hook angle, these blades deliver smooth, burr-free cuts. [1] If you cut soft metal often, that saves time on rework; if you cut only a few pieces a year, a general blade may be enough.
When does a high tooth count carbide blade work best?
A carbide-tipped blade with about 50 to 80 teeth is the right pick when you cut thin aluminum and want a smooth edge. One forum user describes a blade in that range as able to rip through thin aluminum like a hot knife through butter. [3]
The teeth are the key. A blade with this many small, closely spaced teeth removes only a little metal with each tooth. That leaves a cleaner cut and a smoother edge than a coarse blade does.
Picture a thin aluminum sheet you could bend by hand, or a length of thin-wall tube for a rack or frame. These are the pieces where a high tooth count blade does its best work, because thin walls need a fine cut to stay tidy.
Thick stock is different. A blade with this many teeth has less room to clear chips when the cut is deep, so a heavy bar or thick block usually calls for a coarser blade with fewer teeth.
This blade suits you if you cut thin non-ferrous metal now and then and want to skip extra cleanup. Here is how it fits your work:
Good fit: thin sheet, tube and trim stock.
Less suited: thick bars and blocks.
Tooth count: about 50 to 80 teeth, with carbide tips.
Are carbide grit band saw blades worth it for precise metal cuts?
Carbide grit band saw blades are worth considering if you already own a band saw and need precise cuts. They are a band saw option, not a handheld blade, so they fit a shop setup better than a portable saw.
What the blade offers
Continuous cutting edge: Carbide grit band saw blades feature a continuous or gulleted cutting edge for high-fatigue resistance. [4]
Fatigue resistance: The edge is designed to resist fatigue, so it holds up better through long cutting sessions.
Precise cuts: They can make precise cuts in a variety of materials. [4]
The continuous edge matters most when you cut the same non-ferrous stock again and again. Imagine cutting brass bar stock to the same length every day. A blade built to resist fatigue means fewer blade swaps and more consistent cuts through the day.
Who it suits
This blade suits hobbyists and small shops that already run a band saw and cut non-ferrous metal regularly. It is less useful if your main job is cutting thin sheet or tube with a handheld saw. In that case, a tooth blade from the other options in this article is a better fit. It also helps to read Diamond Blade Options for Concrete Cutting at Home.
Because the blade lives on a band saw, its value depends on your machine and your cutting schedule. If you cut only occasionally, a simpler tooth blade may cost less and do the job.
Why should you avoid an abrasive cutoff wheel on aluminum?
Do not reach for an abrasive cutoff wheel when you cut aluminum. It is the wrong tool for this metal, so the fix starts with changing blades. [3]
A carbide-tipped tooth blade is the better choice for aluminum. Its teeth cut into the metal rather than grinding it, which leaves a cleaner edge to work with.
An experienced cutter on a woodworking forum put it this way: a good carbide-tipped blade will rip through thin aluminum like a hot knife through butter. [3] That comment comes from one person’s experience, but it matches what you want from a blade on thin stock.
Burrs are the ragged lip that stays on an edge after a cut, and filing them off is slow work. Switching to a tooth blade removes the burr problem at the source, so you are not adding filing time to every piece. If you already own a carbide-tipped blade, try it on aluminum before you buy anything new.
Here is the short version:
Skip the abrasive cutoff wheel on aluminum.
Use a carbide-tipped tooth blade.
Fix burrs at the blade, not after the cut.
This switch suits anyone who cuts aluminum regularly, from a hobbyist trimming brackets to a homeowner cutting flashing or trim. Because the edge comes out cleaner, you spend less time filing parts before you can fit or finish them.
Should one blade cut both steel and aluminum?
Yes, you should keep a separate blade for steel and for soft non-ferrous metals. A blade that has cut steel or cast iron should not be used on brass, copper, bronze or aluminum. Do not cut brass, copper, bronze or aluminum with a blade used on steel or cast iron [2].
The problem is contamination. Steel particles left in the teeth can rub off onto the softer metal and leave a dirty, uneven cut. You may not notice the residue until the cut edge looks rough, and by then the blade has already done the damage.
A simple routine that prevents mix-ups
Pick one blade for your soft metals and use it only on brass, copper, bronze and aluminum. Mark it clearly with a paint stripe or tape so no one grabs it for steel by mistake.
Store that blade in its own case or a labeled drawer, away from your steel blades. Keeping it separate also protects the teeth from being knocked by harder tools.
Say you cut steel angle on Monday and aluminum trim on Tuesday. If both jobs use the same blade, the trim is at risk. With two labeled blades, you avoid the problem entirely.
Before you switch materials, wipe the blade with a clean rag. Then swap to the correct blade for the metal on the saw.
How fast should the blade spin for aluminum?
Aluminum needs a speed that cuts cleanly without tearing the edge. A welding forum post gives one real-world figure: carbide blades turning at about 1,400 RPM [5]. Treat that as one shop’s setup, not a rule for your saw.
Your saw’s speed matters more than any single number. Find the RPM rating printed on the blade and compare it with the speed your saw runs at. Never run a blade faster than its rating, and never mount a blade rated below your saw’s speed.
Clamp the metal before you start. Aluminum that shifts or spins can catch the teeth and pull the workpiece, and your hands, toward the blade. Clamp on both sides of the cut so the piece stays still until the blade passes through.
Keep the blade guard in place and wear eye protection every time. Metal chips fly during a cut, and the guard and glasses are your first protection.
A simple routine for each cut:
Check the blade’s RPM rating against your saw’s speed.
Clamp the aluminum firmly on both sides of the cut.
Put on eye protection, start the saw, let it reach full speed, then feed the metal slowly.
Feeding slowly lets the teeth clear chips instead of forcing the metal. If the blade slows, bogs down, or the edge starts to smear, stop and check the blade before you continue.
How do you choose the right blade for your project?
Compare the four options below by metal thickness, how often you cut soft metals, and whether you have a band saw.
Option | Best for | Blade design |
|---|---|---|
High tooth count carbide blade | Thin sheet or tube | Carbide-tipped, many teeth |
Triple-chip grind blade | Frequent aluminum or brass work | Triple-chip grind teeth, low hook angle |
Carbide grit band saw blade | Precise cuts on a band saw | Continuous cutting edge |
Separate blade for each metal family | Steel and non-ferrous work | One blade for steel, one for soft metals |
A carbide-tipped blade with 50-80 teeth will rip through thin aluminum, so it suits thin sheet or tube [3]. A triple-chip grind blade is built for frequent aluminum or brass work, since it is designed for softer metals like aluminum, brass and copper [1]. A carbide grit band saw blade suits precise cuts on a band saw, and its continuous edge resists fatigue over long cuts [4].
Start with the thinnest metal you cut most often. If that is thin aluminum trim or tubing, the high tooth count blade is your first buy. If you cut soft metals on repeat jobs, the triple-chip blade is the better fit.
If you cut both steel and non-ferrous metal, buy a separate blade for each, since separate blades should be used for the two groups [2]. Keeping a steel blade and a soft-metal blade on separate hooks or in separate cases makes it easy to pick the right one.
What is the simplest way to get burr-free cuts?
Use a carbide-tipped blade with fine, triple-chip or high tooth-count teeth for non-ferrous metal. Triple-chip grind teeth are made for softer metals like aluminum, brass and copper, and they deliver smooth, burr-free cuts [1]. A high tooth count carbide blade is the usual pick for thin aluminum [3].
Reserve that blade for non-ferrous metal only, and keep it away from steel work. Then choose the exact blade by two things: the thickness of your stock and how often you cut. Thin sheet or tube used occasionally points to a high tooth count blade. Frequent aluminum or brass work points to a triple-chip grind blade.