Circular Saw Sizes in the Market Today

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Circular saws come in a range of sizes, and I can’t stress enough how vital it is to choose the right one for your specific needs. Based on the project you have in mind, weighing all options is crucial; otherwise, you might not get the outcome you’re hoping for.

To avoid mistakes, I’ve put together this guide on circular saw sizes, along with some key tips, to help you pinpoint the perfect sizing for your project.

The Varying Sizes of Circular Saws and Their Uses

3 ½ Inches

Circular saws of 3 ½ inches in size are ideal for cutting straight through various lightweight materials like carpet, cardboard, medium-intensity fiberboard, and lumber. Also, due to its compact build, you might find this size of circular saw easy to store

4 ½ Inches

If you’re going to use a circular saw to cut tiles, PVC tubes, soft metal, wood, plastic, or plasterboard, you can use a 4 ½-inch circular saw. 

4 ½-inch circular saw

6 ½ Inches

These 6 ½ inches circular saws can cut up to 2 9/16 inches or 61mm deep. Using this type of circular saw, you can cut various board thicknesses and lumber sizes. 

7 ½ Inches

The 7 ¼ inches saws are suitable for cutting various depths, which can go up to 2 3/4 inches or 70mm cuts. So, you can use this type of saw on more wood projects. 

8 ¼ Inches

8 ¼ inches is a large-type circular saw. So it offers more power and cutting depth. Worm drive circular saws are usually of this size, which cut through thick materials and even concrete. 

10 ¼ Inches

The 10 ¼ inches circular saws are best for professional use as it’s heavy-duty. It can cut thick materials like metal, timber frames, and more. 

Read Next: What Size of Circular Saw Do You Need to Cut a 4×4 Lumber?

10 ¼ Inches circular saw

Most Common Sizes of Circular Saws

The most standard sizes of circular saws are 6 ½ inches and 7 ½ inches. Many reputable brands in the saw industry offer various circular saws with such sizes. 

Here are some of the top circular saw brands in the market with this size and their corresponding specs and features:


Brand/Model


Size

Power Rating 


Motor Type

Cutting Depth at 90 Degrees


Weight

Makita HS6601

6 ½-inch

1050W

Sidewinder

2 5/32- inch or 54.5mm

7.8 lbs (3.4kg)

DeWalt DWE550

6 ½-inch

1200W

Sidewinder 

2 11/64-inch or 55cm

8 lbs (3.6kg)

Ryobi P507

6 ½-inch

18V

Sidewinder

2 1/16-inch or 62mm

5 lbs (2.27kg)

Most Common Power Rating

The standard power supply for circular saws manufactured in the USA is 120 or 230 volts for corded models. As for cordless models, 18 volts is the standard power supply. 

Regarding the power rating, 1800W is the most common for circular saws. 

(For in-depth information regarding power, you may want to check the watts used by circular saws.)

Ridgid corded circular saw

Most Common Circular Saw Blade Type and Size

When it comes to blade types, most circular saws are equipped with tungsten carbide-tipped blades – typically with 24 TPI (Teeth per Inch). This blade type is used for swift and precise cuts for materials like wood and sheeting.

Choosing Between Wormdrive and Inline Motors

Inline motors (also called sidewinder or direct drive) are the most common motor type of circular saws. These motors are mounted directly on the blade spindle.
 
In my experience, this is the most commonly used type of circular saw motor. I find it efficient, compact, and notably lighter compared to wormdrive motors.
 
Wormdrive motors are also standard in circular saws but are heavier in weight because of their extra geared fragments
 
What’s good about these motor units is they’re heavy-duty performers. They offer durability, making them suitable for professional use. This is why wormdrive units are more expensive. 
circular saw on a stand

So, if you’re considering your budget, opt for the inline motor units. Plus, they’re compact and practical, making them more suitable for home use. If you’re willing to invest a bit more, I’d personally recommend the wormdrive units. They’re sturdy and versatile, making them suitable for a wide range of projects.

Safety Features to Look Out For

The Retracting Lower Guard is a circular saw’s most significant safety feature. You should never use a saw with a defective retracting lower guard. Before you start using the saw, make sure that it’s working properly [1].

Also, make sure to check if the saw you’re using is a wormdrive or inline motor. Wormdrive saws are usually designed for left-handed, and inline (or sidewinder) saws are for the right-handed. Having a good grip is vital to performing the job flawlessly and safely. 

Conclusion

By now, you’ve got a grasp on the various circular saw sizes available. It’s essential to select the right one based on the materials and the nature of your project.

But don’t stop there. Remember to factor in its power supply, rating, blade type and size, motor type, and, importantly, its safety features.

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Robert Johnson is a passionate furniture maker & carpenter, sought after for his knowledge on the craft.
You’ve probably seen his down-to-earth wisdom in USA Today, Bobvila, Family Handyman, and The Spruce, where he has shared commentary and guidance on various woodworking topics.

Robert is the brain behind Sawinery, where he aims to share tips, tricks, and a passion for all things carpentry.

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