We’ll also discuss some key things to consider when buying, to help you find the best end mill bits for your specific needs.

Quick Comparison Table

BEST PRICE

Autotoolhome

Router Bit Set

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BEST DURABILITY

Speed Tiger

Carbide End Mill

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BEST OVERALL

Kodiak

Carbide End Mill

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BEST PRICE<

Autotoolhome

Router Bit Set

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BEST DURABILITY

Speed Tiger

Carbide End Mill

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BEST OVERALL

Kodiak

Carbide End Mill

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Best End Mills For Aluminum

Let’s begin our reviews.

In this section, we’ll review the 6 best end mill bits and bit sets for aluminum in 2026.

1. Autotoolhome Router Bit Set

Unlike the other end mill sets we’ve looked at later in this guide, this one comes with bits of all different sizes. Meaning, if you’re doing a lot of different milling, this is a great pick.

Another unique thing about these bits is they come with four flutes, instead of two or three. There are advantages and disadvantages to this.

The main advantage is you’ll be able to create a much smoother finish, since there will be more contact made with the metal.

However, since there are more flutes on each bit, there is less room for chips to escape. This can result in overheating, due to friction buildup, dependent on your feed rate and RPMs.

We like these bits though for how well they perform, for finishing especially. They’re extremely sharp, and they stay that way over time.

2. Speed Tiger Carbide End Mill

If you’re looking for something a bit more durable, these end mills are worth checking out.

Speed Tiger’s bits are much more expensive than most other end mills on the market. However, you definitely get what you pay for.

For starters, they come with a zirconium nitride coating, rather than being made of just carbide. This material is basically a type of ceramic that is extremely heat-resistant, improving durability and reducing heat-soak when milling.

Essentially, these end mills allow for super-efficient drilling, not just due to their two-flute design, but also because of the quality of the teeth. They leave a super-smooth finish, and work well on nearly any type of aluminum.

Plus, since they’re available in different sizes, you can find something that fits your specific needs. Just note that each set only contains a single-size bit.

3. Kodiak Carbide End Mill

This is one of the few end mills you can buy that’s actually made in the USA.

As a result, it’s a little expensive. But the quality is pretty great.

This is a two-flute bit, making it extremely resistant to overheating. It’s very unlikely to get too hot, even when using it on big projects.

Another benefit of this bit is its size. It has a 1-1/2″ cutting length, giving you a lot of flexibility in the types of milling you can do. We’d recommend taking it slow with this bit though, to prolong its durability.

On the whole, this bit stays sharp pretty well. The only real downside is its price – this end mill is only sold individually.

4. Oscarbide End Mill Set

This is another nice variety set. The difference with these end mills though is they come with some ball-nose bits, which are perfect for applications such as making contoured surfaces.

There are three different types of bit inside each set. Some come with a single flute, making them very easy to use without having to worry about overheating issues, while the two-flute ball nose options are better for finer, slower-paced CNC work.

The price for this set is also pretty reasonable, considering the durability and sharpness of these bits.

For most types of aluminum, these end mills work surprisingly well, given the price.

The only real downside is it would be good to see a bigger variety of diffent bit types in this set. For beginners though, this is a great place to get started.

5. Niagara Cutter End Mill

This is probably one of the most expensive individual end mills that you can buy right now. It’s more expensive than most sets of end mill bits. But is it worth the price?

Probably the most innovative thing about this bit is how it manages chips. It actually tries to break up the chips into more managable pieces, rather than leaving big chips in the flutes. Combined with the two-flute design, this makes for extremely efficient chip extraction.

As you’d expect given the price, this bit cuts through aluminum like butter. And it stays extremely sharp over time, meaning you’ll very rarely have to replace it.

Note that as a roughing bit, this end mill is designed to remove material as quickly as possible. It won’t leave a super-smooth finish.

Ultimately, if you need a roughing bit, and are fed up of replacing cheap end mills, this bit is worth checking out.

6. Yosoo End Mill Set

As another budget set of end mill bits, this option is great for beginners in particular, for a few reasons.

First, it’s very cheap, and comes with four bits of the same size. Meaning, if you break one or it goes dull, it’s not a big deal at all. You’ll be able to learn aluminum milling without having to worry too much about your bit breaking.

In terms of durability, these bits are pretty good considering their price. They can become hot due to their four-flute design, so it’s a good idea to use them on a slow setting, which is what you want to do as a beginner.

The benefit of having four flutes though is it allows you to leave a better-quality finish. Therefore, these bits work well for engraving and other milling that requires a super-smooth finish.

How To Find The Best End Mills For Aluminum

Not sure what to get?

In this section, we’ll show you how to find the best end mill bits for milling aluminum.

End mills vs drill bits

While drill bits are used for drilling holes straight down, end mills are used for milling – for example using a CNC router.

To make this possible, end mills are shaped in such a way that they can cut along any axis – not just straight down, along the z-axis. You can drill some types of holes with an end mill, but you can’t mill with a drill bit.

But what does this mean for milling aluminum?

Even though aluminum is one of the most machinable metals, given it’s softer than most other metals, you’ll want to ensure that your end mill is tough enough to make clean, consistent cuts, without going dull.

What type of end mill should I buy for aluminum?

When buying something to machine aluminum, you’ll want to look for two-flute or potentially three-flute end mills.

Two-flute end mills are the preferred choice for aluminum. They offer a good balance between cutting speed and clean cuts.

If you need the most efficient end mill possible, three-flute options are also worth considering. However, remember that aluminum can heat up very quickly milled on fast settings, and can leave large chips.

Therefore, you don’t want to use an end mill with too many flutes unless you need an extremely clean finish.

Depending on the type of milling you’re doing, there are different types of end mills you might like to use:

• Square end mills are the most common type of end mill. They’re used for many types of general applications, including slotting and plunging.
• Ball-nose end mills are the best type for making contoured cuts. They’re a great choice if you need a smooth finish.
• V-bits are generally used for engraving, or for some types of slotting.

There are lots of other types of end mills that you may want to consider, depending on the type of milling you want to do. However, square end mills are generally the best choice for most purposes.

What makes a good end mill for aluminum?

Apart from ensuring you get the right number of flutes, and the right type of end mill, there are some other factors to consider to ensure successful aluminum milling.

First, you want to ensure that you buy an end mill made of carbide, for durability. If your bit isn’t made of carbide, then it’ll become dull extremely quickly when milling aluminum.

Another good thing to look for to ensure durability is “high-speed steel”. This is what most drill bits designed for use on metal are made from.

And finally, some end mills will have a cutting edge designed specifically to ensure smooth, efficient aluminum milling. The teeth of the bit should be able to produce small chips to avoid issues with overheating.

What are the best end mill brands?

There aren’t really any individual brands that always make the best end mills.

American-made products are generally the best end mills you can buy. However, they will be expensive, and can be difficult to find online.

There’s no problem with buying from a cheaper brand for most CNC users. You just need to ensure that their quality is decent.

To assess quality, have a really good look at the customer reviews for each specific drill bit. Look for people that have used the bit for a long period of time – this will give you a better idea of the true quality of the end mill.

Do I need an end mill set?

It’s technically possible to buy a smaller bit and make more passes in order to achieve the same results you would with a bigger end mill.

However, there are issues with doing this. Firstly, it will take longer, because when milling aluminum, you might need to give your bit a lot of time to cool down. Secondly, it’ll wear out your bit faster, forcing you to buy another one when it gets too dull.

In general, it’s often a good idea to buy a set of end mills – even a small one – to avoid these sorts of issues. Just think about the type of milling you’re going to be doing beforehand, to ensure that you can get a set with the right types of bit.

How much should I spend on end mills for aluminum?

There are a massive number of different end mill bits for sale right now, available at very different price points.

It might seem like it’s worth going for a cheaper end mill, and just replacing it if it breaks. However, cheaper end mills often produce poor-quality cuts, which is why they’re best avoided.

For a single end mill, you should be able to get a quality product for around $20.

For a proper set of quality end mills, expect to pay $50 or so. Note that it’s possible to get much cheaper sets than this, but they will often be much lower-quality.

What do I need to know when milling aluminum?

To ensure effective milling of aluminum, your end mill must be sharp. Otherwise, it will struggle to cut effectively. This is why maintaining your bit as discussed above is so important.

You also need to know that there are different types of aluminum. The more “gummy” the material, the more difficult it will be to cut.

This is why we recommend starting with a slow feed rate. Some suggest to use a higher feed rate to ensure quicker chip evacuation, but when getting a feel for your material, it’s worth starting out slow.

Remember, aluminum is one of the most difficult materials to mill. Always make test cuts first, and wear safety gear to protect yourself from aluminum shards.

Conclusion

This is the end of our buyer’s guide.

Remember, when buying an end mill as a beginner aluminum miller, it may be tempting to go for the cheapest option you can find.

There are benefits to cheaper products. If you get the wrong one, you won’t be out of pocket as much.

However, cheaper end mills can make your life very difficult if you’re not used to milling aluminum.

As a beginner, you don’t need to break the bank, and get a super-expensive end mill. But it’s worth avoiding super-cheap Chinese products, unless they have excellent reviews.

About the author

Steve

I’m Steve, and I’m the Drill Bit Guru! When I bought my first home, I realized that most odd jobs that came up I could do myself. These days, I DIY pretty much everything, especially jobs that require the use of a drill!

In this buyer’s guide, we’ve reviewed the 7 best CNC router bits for wood, including v-bits, ball-nose bits, and regular end mills.

We’ve also discussed some key things to consider when buying, to help you buy the best end mill for your specific needs.

Our Top Picks

BEST UP CUT

Whiteside

Up Cut Spiral Bit

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BEST DOWN CUT

SpeTool

Down Cut Spiral Bit

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BEST SET

Genmitsu

End Mill Kit

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BEST UP CUT

Whiteside

Up Cut Spiral Bit

Value rating

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BEST DOWN CUT

SpeTool

Down Cut Spiral Bit

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BEST SET

Genmitsu

End Mill Kit

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Contents

• Best CNC Router Bits For Wood
• How To Pick The Best CNC Router Bits For Wood
• Conclusion

Best CNC Router Bits For Wood

Time to begin our reviews.

In this part, we’ll look at 7 of the best CNC router bits for wood you can buy right now.

1. Whiteside Up Cut Spiral Bit

Need a high-quality bit for drilling holes in hardwood?

This is an up cut bit, so it pulls wood chips up and out of the surface. Meaning, it’s suitable for drilling straight down into wood, when drilling holes for example.

As you’d expect from Whiteside, this is a very sharp bit. It might even be a good idea to wear gloves when handling it. And due to the carbide tip, it stays sharp for its entire lifetime.

Although this bit is reasonably small, at a 1/4″ cutting diameter, it’s more than capable of making more passes without overheating or becoming blunt if need be.

Overall, we can’t really fault this bit for cutting wood.

2. SpeTool Down Cut Spiral Bit

This is a similarly-priced option to the Whiteside bit we just looked at. Except, this is a down cut rather than an up cut bit.

As a result, the top side of your material will have a cleaner finish. However, this bit isn’t as good for drilling straight down into the wood you’re working with, because you’ll be repeatedly drilling into wood chips already in the hole, which can cause heat buildup.

Apart from that, the two bits are very similar. They both feature a 1/4″ shank and cutting diameter, and carbide blades.

However, although this end mill is a little cheaper, it’s slightly less durable. It’s still a fantastic bit though, especially for beginners looking for a reasonably-priced down cut option.

Like Whiteside, SpeTool also sell this bit in a heap of different sizes, and there’s also an up cut version if that’s what you’re looking for.

3. Whiteside 6210 Surfacing Bit

This is yet another 1/4″ shank bit from Whiteside, except this option is a surfacing bit.

It features three ultra-sharp carbide tips, to help surface your spoilboard or reduce the thickness of the wood you’re working with.

Featuring a 1″ cutting diameter, this isn’t the biggest surfacing bit you can buy. However, it definitely gets the job done, and you don’t have to be afraid of making more passes, due to its durability.

If you’d like a bigger diameter, you can instead go for the 6220 surfacing bit, which comes with a 2″ cutting diameter. This will cost more than the 6210 though.

For most applications, this is probably the best surfacing bit you can buy right now. Provided your CNC is calibrated correctly, it leaves a perfectly level finish on anything from hardwood to MDF.

4. Genmitsu End Mill Kit

As a beginner CNC router user, trying to buy bits individually can be a real hassle.

To get everything you need to get started, you’ll have to buy a whole heap of different bits, which could end up costing a small fortune.

Instead of going down that route, it could be worth considering a set like this one, which comes with four different types of router bit.

You get some spiral flat nose and ball nosed bits in this set. Meaning, you have a lot of versatility on offer to do different things like drilling holes, and engraving.

For each type of bit included, there are ten different sizes in total. This can be very helpful when learning, and experimenting with different sized bits. There’s so many bits that you probably won’t end up needing to use all the different sizes, at least not immediately.

Given what you get, and the durability of the bits, the price is pretty reasonable.

5. Yakamoz V-bit Set

If you’re just looking to buy v-bits for engraving, this set is worth checking out.

Unlike many other v-bits on the market, these bits feature a 90° rather than a 30° interior angle. This makes them a bit more versatile, as it’s more in the mid-range of the typical angles used on v-bits.

There are four bits in each pack, each with a different cutting diameter, further increasing the versatility of this set.

Given the price, they work extremely well with all different types of wood, including hardwood, but aren’t suitable for metal.

The only other thing we can say about these bits is they’re not quite as durable as some premium alternatives. However, this is to be expected given the price.

6. Foos Engraving Router Bits Set

For engraving, you might want more than just a 30° or 90° v-bit, to ensure you can get the exact finish you need.

With this set, you get four engraving bits, including a 90° and 60° v-bit, a 15° detail bit, and a 20° profile bit.

Despite being a reasonably cheap set, you definitely get everything you need for engraving. Plus, these bits are extremely effective on all types of wood, including hardwood – the tips are super sharp.

The durability is great overall – the bits stay sharp, because they’re made of solid carbide, rather than coated with it. However, the detail bit is a little thin at the tip, which can lead to it snapping if used at depth.

On the whole though, whether you’re making signs, creating shapes, or doing other types of lettering, this set has everything you need for engraving wood.

7. Yonico Ball Nose End Mill

This is a larger ball-nose end mill, with a cutting diameter of between 3/16″ – 1/2″. We’ve looked at the 1/2″ version here.

The size and shape of the tip makes it perfect for creating contoured finishes, or routing material that already has a slope.

As we mentioned above, you can get this bit with nearly any cutting diameter, and there are tons of available shank diameters too, further increasing its versatility.

Like the bit we just looked at, this is a solid carbide option, meaning it won’t become blunt over time. It comes extremely sharp out of the box, making it fantastic for cutting wood.

However, this bit can snap under extreme conditions. Although it won’t wear down, it can break completely on occasion if used at high feed rates.

How To Pick The Best CNC Router Bits For Wood

There are tons of CNC router bits on the market right now. There are so many in fact, that it was be difficult to know what to get.

In this section, we’ll discuss some key things to consider when picking CNC router bits when working with wood.

What’s the difference between a drill bit and a CNC router bit?

On the surface, drill bits and CNC router bits look pretty similar.

They normally have a similar sort of size and shape, and a similar flute design.

However, looking further, you might begin to notice that there are actually lots of different types of CNC router bits, each designed for different purposes.

For example, there are ball-nose CNC router bits, which are often used for cutting wood and plastics. They feature a rounded tip, which isn’t often seen on a regular drill bit.

This is the main difference between the two. Some router bits will have a completely different shape to any drill bit.

Also, some router bits also come with a down cut spiral, to improve the quality of the finish on the wood. Drill bits don’t generally have this feature.

What makes a good CNC router bit for engraving wood?

Typically, you will want to use two-flute bits when working with wood. They’re used for most pocketing work.

Two-flute bits remove more material and leave a smoother finish. Anything higher (three-flute and above) is designed to be used with metal.

Sometimes, round over bits or v-bits are used for decorative work, as they can be extremely precise, and leave a super-smooth finish.

Also, the round-nosed bits we mentioned earlier are great for finishing off your project, especially the lower diameter options.

For beginners, it’s often recommended to buy a set of CNC router bits, so you can get used to all the different types, and find out what types of bit you prefer to use in different situations.

CNC router bit terminology

There is a lot of jargon you’ll notice when shopping for router bits.

If you’ve been routing for a long time, you’ll probably understand most of the terminology used.

However, there are some terms that are very important to understand.

• Mortising bits are designed to be used for precise mortising cuts on thin materials. They feature an up-cut design, resulting in a cleaner finish.
• Chip load refers to the size of the individual wood chips generated by your router bit. Bigger chips mean less refined cutting. However, the smaller the chips, the more friction the bit will generate, which can cause heat buildup.
• A flute refers to the spiral with which the drill bit removes wood chips out of the hole being drilled. Each spiral starts at a cutting edge on the bit, so the number of flutes also refers to the number of cutting edges. Therefore, the more flutes, the stronger the tool, often resulting in a smoother finish. However, fewer flutes means that a slower feed rate is required, to ensure that the chips can be safely ejected from the bit.
• Up-cut bits are designed to remove material – the spiral goes upwards, pulling chips out of the hole. They’re suitable for drilling straight down into the wood.
• Down-cut bits will do the opposite – pushing wood chips back down, because they spiral downwards. They’re used when it’s important to have a quality finish on the bottom surface of the wood. Normally, they’re used with thinner materials where there are fewer wood chips to remove.
• Surfacing bits have a very different shape to most other router bits. They have a flat contact surface, often with horizontal tips that cut almost parallel to the surface. They’re used to surface edges, such as your spoilboard.
• Some bits are technically end mills, not drill bits. An end mill is essentially a type of bit that can cut in any direction – not just straight down. They also leave a smoother finish than a pure router bit. Of course, this is very useful to have when using a CNC router.

What size bit should I use?

The first thing to consider is the length of the bit. Think about if the body will have enough length to make the cuts you need, dependent on how thick your material is.

You also need to think about bit diameter. Are you looking to perform ultra-efficient pocketing, or are you trying to leave a super-precise finish?

Remember, the smaller your bit, the longer your machining times, because the bit has more ground to cover. Also, smaller bits will produce smaller chips, potentially resulting in more heat being generated as you cut and premature wear of the bit. However, you will be able to make more precise cuts with a smaller bit diameter.

It’s important to note that the diameter of the shank does not necessarily match the diameter that the bit will cut. It’s entirely possible that the cutting diameter will be smaller or larger than the shank diameter, depending on the shape of the bit.

How to find a durable CNC router bit

The most important factor in determining how long a drill bit will last is how it’s used. For example, avoiding using down cut bits for drilling holes, because this can lead to massive amounts of heat.

However, even wood can cause poor-quality router bits to snap, so it’s important to be careful when considering what to buy.

To find a durable router bit:

• Look at the tip of the bit. Carbide, and especially tungsten carbide, is what you want to see. This material is stronger than steel, and when applied correctly, makes for a very long-lasting tip.
• Try to find a bit that’s actually made of steel. While carbide is great for the tip, generally steel makes for the best shaft and body material.
• Linked to the above – rust resistance is also important, especially if you live in a humid environment. It can be hard to tell ahead of time just how rust-resistant a drill bit is, but customer reviews are a great place to start.

What do the best CNC router bits cost?

You can spend up to $40-$50 on a single CNC router bit.

However, although doing so will likely help you find the best quality bits, it’s not a good idea if you’re new to CNC routing.

As a beginner, it’s unlikely that you’ll know exactly what bits you need for the work you’re doing. Therefore, don’t be afraid to go for slightly cheaper bits immediately, or a smaller set of bits, while you learn the ropes.

It’s still perfectly possible to find good router bits for much less than $40.

Can I use my router bits on materials other than wood?

In most cases, yes you can. This may wear the bit out a bit quicker though.

Some CNC router bits are advertised as being suitable for materials like wood, and plastic, but not metals such as aluminum.

If you are also going to be routing metal, it’s a good idea to double-check the toughness of the drill bit before buying.

What bits will work with my collet?

To use a specific drill bit, you will have to have a collet that works with the shank size of that bit.

The thing to look at is the shank diameter. Different collets might take a 1/2″, 1/4″, or 1/8″ shank diameter.

If you want to buy a specific bit but don’t have the right size collet available for it, you’ll have to buy a collet to go with it as well.

When shopping for collets, ensure that the one you buy is compatible with your CNC router. Some types of collets only work with specific brands.

How to fit your bit in the collet

Once you’ve got the right bit and the right collet, you’ll have to attach the two.

1. Double-check that your shank and your collet are the same size. If they’re not, this could lead to you breaking your collet, or poor-quality routing.
2. Open the collet and loosen the nut.
3. Verify that your collet and bit are completely free of dirt, grime, and grease. Wipe them clean if necessary.
4. Push the router bit into the collet until it reaches the bottom. You may want to insert it at a slight angle if it won’t otherwise reach.
5. Pull back the router bit by the amount recommended by the manufacturer – normally 1/4 to 1/8 of an inch. This gives the bit some room to come down as you drill, which will happen naturally.
6. Tighten the collet and check that the bit is set correctly.

Of course, it’s always a good idea to check the collet instructions. Some collets may not require you to push the bit all the way to the bottom as in step four, for example.

Conclusion

You’ve reached the end of this buyer’s guide.

Remember, as a beginner, you don’t necessarily need to buy CNC bit that you’ll use for the rest of your life. You just need to learn what types of bit you like to use for the routing you’re doing, and how to get the most out of your CNC router.

Still not sure which bits are best for you? Drop a commend below and we’ll get back to you ASAP.

About the author

Steve

I’m Steve, and I’m the Drill Bit Guru! When I bought my first home, I realized that most odd jobs that came up I could do myself. These days, I DIY pretty much everything, especially jobs that require the use of a drill!