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Review: Best Miter Saw

Miter saws have probably been around since the birth of carpentry. Okay, maybe that’s a bit of exaggeration, but they’ve certainly been around a long time. That’s not to say they haven’t changed, because they definitely have. The old miter box with a back saw is getting pretty hard to find these days. Now, everyone is using power miter saws and getting their work done faster.

Regardless of the type and complexity of a particular model of miter saw, they all serve the same purpose which is providing a way of cutting material on an angle accurately. This originally meant cutting picture frame molding, molding used on furniture, and architectural moldings used for finishing out a home. However, today’s carpenter and woodworker use their miter saws for much more.

Miter saws come in a wide variety of sizes and styles. While power miter saws are the most common, there are still manual miter saws on the market. In some cases, they’re better than the power ones. More recently, sliding power miter saws have taken over a lot of the market by adding increased capacity for larger workpieces. Check out our list of the best miter saws in 2021 and our buyer's guide provided below will help you decide what type you need.

What are the best miter saws of 2021?

Bosch Power Tool Miter Saw

Bosch’s saw comes with a nice set of features, most of which have been added to make the saw easier to work with. All the controls are up-front and the handle is adjustable for four different positions and I believe this makes this saw the easiest to work with in this category. Bosch has also made the table extensions integral to the saw, giving a total width of 40-inches to the table. The fence is also sliding, allowing you to extend it to the side when necessary. There’s also a built in length stop for those times when you have to make repetitive cuts.

The detent system on this saw is unique as well, being a “wedge and slot” rather than a typical ball detent. That will make a difference over the life of the saw, as it will help maintain better accuracy. There’s also an override for the detent as well, for those times when you need to set up a cut that’s just a little off. Also included is a built in an electric brake, which is especially nice for keeping your fingers safe during repetitive cutting. Finally, this saw has an arbor mounted laser, making it easier to get your cuts exactly where you want them.

DEWALT 12" Double Bevel Sliding Miter Saw

Our final saw is the DeWalt DWS780, an upgrade from the venerable DW718. However, that doesn’t mean it’s not as good as the others we’ve looked at. The difference between one of these saws and another is minimal. An interesting thing they’ve done on this one is to make the stainless steel miter plate with its detents adjustable, which makes up for any inaccuracies that might be found.

The fence on this one is set farther back than most, increasing the capacity to 16-inches. It's also sliding, like some of the other saws we’ve looked at. Some people have complained about the miter cam lock, but the one I tried worked well and the override feature makes it possible to set angles very close to the detents. An integrated XPS cross cut positioning system provides adjustment free cut line indication, improving accuracy.

Makita Makita 12" Compound Miter Saw

As usual, Makita produces a top-notch product. This 12-inch, 15 amp saw has all the features you’d expect in a compound miter saw, although it’s only a single bevel. That means that it just bevels to the left, not to the right and they’ve also put nine miter stops on it, almost as many as the DeWalt.

The pivoting fence allows the saw to support larger materials, meaning you can easily cut 5-1/2-inch cover molding on it. The control handle is a D handle, a bit rare on miter saws but that's actually much easier to grasp and reduces operator fatigue. The motor even has an electric brake for safety and longer life.

Bosch Single Bevel Compound Miter Saw

This Bosch saw has been hailed as the easiest model to carry, with a well-balanced, center-mounted carry handle. This 12 inch saw has a 15 amp motor, running at 4300 RPM and also comes with integral workpiece supports, which extend out to a total width of 37 inches. whereas the other saws we’ve looked at have those as an accessory that you have to purchase separately. Like the Makita, it’s a single bevel, but this one uses a 12 inch blade, making it possible to cut the larger moldings. Additionally, the base plate has 9 miter detents and it has an ambidextrous trigger handle.

Skil 3820-02 12" Compound Miter Saw with Laser

Skil, the company who invented the Skilsaw, provides a very nice 12-inch saw with a 15 amp motor at a really reasonable price. It should be noted that this saw uses blades that take a one inch arbor which gives more stability to the blade, whereas the other saws we looked at take a 5/8-of an inch version.

Skil has added a few extra, uncommon features such as integral table extension supports, which are nice to have, and a workpiece clamp to hold the molding in place for accurate cuts. It also has a laser for the cut line, for individuals who are worried about their cutting accuracy.

best Skil #3317, 10" Compound Miter Saw with Laser

Skil #3317, 10" Compound Miter Saw with Laser

Skill doesn't seem to receive the press they deserve for the quality of their tools. As the original inventor of the original Skilsaw, they know a lot about designing and building saws, especially models using round blades.

This is a compound miter saw so it will work for cutting those infuriating angles required for cove moldings. The table has extensions on both sides to provide better support to the wood being cut and it's also got a clamp to hold the workpiece in place while cutting. Lock-off switches are also included for both right and left handed users.

Skil uses a "quick-mount" system for attaching their saws to the stand, saving valuable setup time at the jobsite. This one also has a laser to show the cut line, a useful feature that's becoming more and more common.

Genesis 10" 15-Amp Compound Miter Saw with Laser

Although Genesis isn’t a big name in the tool market, they do make some descent tools. This 10-inch miter saw allows compound cuts, beveling to the left side. It also includes a laser cutting guide that’s becoming a common of these tool types. The table is rather small, but has feet that extend out far enough to give it stability; the fence is a little low as well. Like the other saws we’ve looked at it comes with the table extensions and a workpiece clamp.

best Craftsman #932563, 7-1/4" Sliding Compound Miter Saw

Craftsman #932563, 7-1/4" Sliding Compound Miter Saw

This saw from Craftsman caught my eye because it's a sliding miter saw, but still falls within the price restrictions I set. It uses a 7-1/4-inch blade, so it's not going to be all that great for cutting large crown moldings but on the other hand, if you need to cut a lot of angles on the flat, this one has a nine inch capacity at a 45 degree bevel. That might actually work out better for some people's needs than a larger diameter blade without the slide.

An added advantage with this saw is that the blades are going to be cheaper. The D handle is centrally located, making it perfect for both right and left handed users. Table extensions help with holding longer workpieces in place and nine positive miter stops help ensure accuracy. There is also a slightly more expensive version of this saw, which includes a laser for the cut line.

Nobex Champion Miter Saw

This Swedish made saw from Plano Systems AB has to be the finest made manual miter saw available on the market with a machined aluminum fence and steel saw holders. Rated at 0.08 degrees, it provides incredible accuracy, along with a vertical capacity of 7-1/5-inches and a horizontal capacity of 7-7/8-inches at ninety degrees, making it the highest miter saw around.

It has a stop for repetitive cutting with a maximum capacity of 28-5/8-inches and there are detents in the miter settings for the most common angles. While it comes with an 18 TPI blade, Nobex also has a 32 TPI blade for the same saw, which I highly recommend, especially for fine cabinetmaking and picture frames. There are also materials clamps on both sides of the fence to hold materials tightly to the fence.

C.R. Lawrence H36191 CRL Dual Purpose Miter Saw

C.R. Lawrence refers to this saw as “dual purpose” because it’s designed for cutting both wood and plastic. While I believe any miter saw can do that, they’ve probably kept that in mind for their blade design, which I’m sure not everyone has done. The cast aluminum base and fence combination is machined for exact straightness and angle. The fence isn’t as high on this one, as on the Nobex, nor can you get a 32 TPI blade for it. However, it does have material clamps on both sides of the saw and it’s still a fine saw, with accuracy to rival the Nobex.

Buyer's Guide

The whole idea of any miter saw is to be able to cut at an angle accurately. Generally speaking, this means crosscutting at an angle as that’s much more common than ripping at an angle. These saws start at cutting at 90 degrees to the lumber's face and will cut up to a 40 or 50 degree angle to either side. The ability to cut these angles accurately has made the miter saw an indispensible part of any carpenter's or woodworker's toolbox.

For many carpenters, the miter saw has all but replaced the circular saw for cutting dimensional lumber. Not only is it faster and with greater accuracy, but it’s a whole lot safer as well. There’s much less possibility of hurting yourself on a miter saw than there is with a circular saw.

The larger sliding miter saws have all but replaced the radial arm saw as the tool of choice for different types of crosscutting. About the only place where you see a radial arm saw anymore is in a cabinet shop or furniture factory. The sliding miter can do almost anything they can do and is actually much easier to work with. It is also portable whereas the radial arm saw really isn't.

Miter saws today come in a wide variety of sizes and styles, enough in fact where it almost seems like they couldn't all be called miter saws. But the one thing they all have in common is the ability to cut angles accurately, the prime purpose of a miter saw and one they all share. Of course, the more capacity the saw has, the more it will usually cost you.

Types of Miter Saws

Standard (Budget) Miter Saw

For those who need to install baseboard and casing on a home or cut picture frame molding, a standard miter saw is usually enough. There’s really no reason to pay the higher price for a more complex saw. These saws cut simple angles across the grain of the wood. A miter gauge is supplied, allowing the saw to be set to an exact angle for cutting.

Cutting with a standard miter saw is accomplished by lowering the blade into the workpiece, which is held in place on the table and against the fence. The blade and motor are mounted on a pivot, allowing them to go up and down for cutting.

Compound Miter Saw

When you step up into cutting crown molding, a standard miter saw is no longer enough. The outside corner for crown molding is a compound angle; meaning it’s cut at an angle in both the horizontal and vertical directions. To accomplish this, the saw's blade and motor need to tilt as well as swing from side to side.

Some compound miter saws are "dual bevel", meaning the motor can be swung off the vertical either to the right or left. While it’s technically possible to cut crown molding with a compound miter saw that only swings to one side, it takes a lot of mental gymnastics to get your mind around the angle you need to cut. With a compound miter, you can cut these angles much easier.

Sliding Miter Saw

The sliding miter saw has the cutter head (blade and motor) mounted on rails, allowing it to move back and forth as well as up and down. This allows for cutting of larger workpieces such as 2"x 12" dimensional lumber used for framing. While the accuracy of sliding miter saws allows them to be used for cutting large molding as well, most of the sliding action is actually used for allowing the cutting of dimensional lumber on the saw.

Sliding miter saws can either be standard miter or compound miter with a few actually dual bevel sliding compound miter saws. While these cost more, the added capacity of these saws means you can use one saw for all your crosscutting tasks, especially if you do a lot of woodworking requiring cutting angles. While a radial arm saw has the same capacity for cutting the same angle and workpiece sizes a compound sliding miter saw can, the miter saw is much easier to set up for complicated cuts than the radial arm saw is.

Manual Miter Saw

With all these powered miter saws, it would seem there’s no place left for a manual miter saw, but that is far from the truth. There are some applications, such as cutting picture frame molding or cutting extremely small workpieces (such as dowel rods) which are actually better done on a high quality manual miter saw, to avoid damaging the workpiece.

Manual miter saws range from the extreme simplicity of an old-fashioned miter box and a back saw to extremely accurate bucksaws, tensioned and mounted permanently to the miter frame. These are used almost exclusively for cutting picture frame moldings. There’s no reason for someone who uses a miter saw rarely to spend the money on a high-dollar sliding option, not when he can do everything he needs with a miter box and back saw.

Understanding How the Specifications Affect You

With such a wide range of miter saws on the market, it's extremely important to pay attention to what particular models specifications say. This, more than anything else, will determine what type of saw you need. While looking at these specifications, think of the largest workpiece you are likely to try to cut with the saw as well as the type of cuts you need to make; this will determine the size and type of miter saw you need.

Motor Size

Most power miter saws have a 15 amp motor, which provides enough power for cutting through dimensional lumber or hardwood, without bogging it down. My venerable radial arm saw only has an 11 amp motor, and I’m regularly stalling it when cutting dimensional lumber. So, for the most part, power isn’t the issue when looking at these saws, ease of use is. However, when looking at some budget models, you might find a smaller motor size. If you're planning on cutting dimensional lumber, I would avoid these saws.

Blade Size

Most miter saws are manufactured for either 10" or 12" blades, although there are some smaller ones that use 8" blades. The blade size doesn't matter much for many cutting operations, but is extremely important for cutting crown molding. If you’re planning on cutting large crown molding, you will need a saw designed for a 12" blade; this allows for cutting crown molding up to 5 1/2". In comparison, a 10" bladed miter saw will allow cutting crown moldings up to 4".

In order to cut crown moldings larger than 5 1/2", you'll need to move up to a sliding compound miter saw. Depending on the exact model you choose, many of these will cut crown moldings up to 8".

To Slide or Not to Slide

The biggest decision in determining your saw's capacity is whether or not to spend the extra money on a sliding miter saw. This depends more on the size of workpieces you intend to cut with your miter saw.

The easiest way to describe this is with three examples:

- Crosscutting or angle cutting 2" x 10" or 2'x 12" dimensional lumber

- Cutting the outside angle for crown molding larger than 5 1/2"

- Cutting the outside corner for baseboard that is more than 6" tall. With a compound sliding miter saw, you can lay the molding on its back and cut up to 12" high baseboard for that outside corner.

When looking at a miter saw, besides the basic dimensions it will cut, you want to look at the overall manufacturing quality. There are a few basic parts, which will show this better than anything else:

What to Look For

Bed and Fence Construction

As with most powered saws, the bed and fence have a lot to do with the accuracy of the cut you can make. Look at the overall quality of the castings, how well they’re finished and how big they are. A larger bed or longer fence rails drives up the cost and is a common place to try and cut corners; however, your cuts will suffer for it.

A few manufacturers offer exceptionally high fences. If you’re going to be cutting a lot of large crown molding, you want this feature. Without a high fence, it’s hard to hold the crown molding for an accurate cut. The best fences are adjustable although there are few models which have this feature.

Rollers for the Slide

The sliding mechanism consists of two polished metal tubes for rails. Manufacturers vary greatly on the types of rollers or bearings they use on those rails. Ball-bearing construction is the best, as it will roll smoothly and not wear through use.

Ease or Turning and Locking in Angles

The ease in which the table swings for setting angles says a lot about the quality of the machining done in the manufacture of the saw. Poor fit and finish shows up here, more than anywhere else. Also check the stops that are provided. Do they lock in easily and securely? For that matter, how many stops has the manufacturer provided?

While the items listed above are the most important to be looking at, you shouldn't ignore those things that will make it easier to work with your miter saw.

Other Considerations

Extensions

Table extensions add additional support for your workpiece, beyond the limits of the table itself. Considering it's not uncommon to be working with 20' long pieces when cutting molding, these can be invaluable.

Controls

How easy are the controls to access and use? The best models will have all the controls up front, so you don't have to reach past the blade to get to them. Things like handle shape can make a lot of difference when doing a lot of cutting. A "D" handle is easier to use in that case.

Lights

Many miter saws now come with laser guides for aligning the blade to your cut mark. While not necessary, they do make the job easier, especially when you’re trying to cut a lot of material quickly. Using the laser makes it much easier to be sure you’ve got the cut right.

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