6 1/2 vs 7 1/4 inch Circular Saw; Which is The Best Circular Saw Blades For Your Project?

6 1/2 vs 7 1/4 circular saw

Circular saw blades come in various sizes, ranging from 4 ½ inches to 8 ½ inches. For general purpose tasks though, the most common are 6 ½ inch and 7 ¼ inch blades. In fact, most circular saws will have either of the two latter blade sizes.

This brings us to the question of today, which blade size is right for you between the two? Well, it largely depends on your needs. Both blade sizes have their pros and cons, and by looking at both, you can deduce which is right for you.

Let’s have a look at what these two standard blade sizes have to offer, and where they excel over the other.

Recommended best circular saw blades

SaleBestseller No. 1
Diablo D0724A 7-1/4" 24T Diablo Circular Saw Framing Blade
  • BUNDLE INCLUDES: 10 x Diablo 6-1/2" x 24-Tooth ATB Framing Saw Blades with 5/8" Arbor
  • TRACKING POINT TOOTH DESIGN: Tracking Point tooth design provides straight cuts and control carbide wear for up to 5x longer cutting life v/s other blades and 2x the durability in nail-embedded wood
  • ANTI-VIBRATION DESIGN: Enhanced Anti-Vibration design provides the ideal combination of stability and rigidity
Bestseller No. 2
DEWALT 10-Inch Miter / Table Saw Blades, 60-Tooth Crosscutting & 32-Tooth General...
  • Tougher tungsten carbide stays sharper longer
  • Thin kerf for fast and smooth cutting action and The arbor size is 5/8”.
  • Computer-balanced plate reduces vibration for improved accuracy and better finish

6 1/2 vs 7 1/4 circular saw : The Main Differences Between 6 1/2 " and 7 1/4" circular saw

Power efficiency

The 6 ½ inch blade is, of course, smaller than the 7 ¼ inch blade. This translates to less torque being required to spin the 6 ½ inch blade. As such, the 6 ½ inch blade is compatible with saws with smaller motors.

Also, saws with a 6 ½ inch blade are also lightweight. This makes them an ideal option for light tasks around the house. Also, the 6 ½ inch blade is common in cordless saws. The 7 ¼ inch blade requires a little bit more torque.

Therefore, you need a little bit more powerful motor to spin the larger 7 ¼ inch blade. Thus in regards to power efficiency and portability, the 6 ½ inch blade takes the day.

Depth of cut

Depth of cut is how deep a circular saw can cut. The 7 ¼ inch blade offers a deeper cut depth than the smaller 6 ½ inch blade. Most 6 ½ inch saws are incapable of cutting through 1.5-inch thick lumber at a 45-degree angle.

When set to 45 degrees, most 7 ¼ inches can cut up to a maximum depth of 1-⅞ inches. And at 90 degrees, you can cut up to a depth of 2-7/16 inches. Clearly the 7 ¼ inch blade is the undisputed king of the depth of cut between the two.

Variety

Circular saws are used to cut a wide variety of materials from wood to metal. However, the type of blade used to cut wood is not the same that cuts metal. This means you need to swap out the blades when you need to cut a different material other than wood.

As such, you need to have several different blades. So how do our two blade sizes fair when it comes to cutting through other materials? In terms of availability, 6 ½ inch metal cutting blades are harder to find than 7 ¼ inch blades.

Therefore, you can easily get 7 ¼ inch blades for cutting a wider variety of materials than 6 ½ inch blades.

Power

While the 6 ½ inch blade is power efficient, saws with this blade tend to be less powerful. More power is required to spin the larger 7 ¼ inch blade. As such, 7 ¼ inch circular saws tend to be more powerful.

This is one of the reasons why you get a deeper max cut depth with a 7 ¼ inch circular saw. Thus if you need power, then go for the 7 ¼ inch blade circular saw.

Cordless vs. corded

Battery-powered cordless circular saws mostly feature the smaller 6 ½ inch blade. On the other hand, corded models predominantly feature the larger 7 ¼ inch blade. While there are 7 ¼ inch cordless models, they are usually bulky.

Cordless 7 ¼ inch needs more battery power, which translates to a bigger battery or two batteries. This additional weight is a disadvantage. However, as already explained 7 ¼ inch circular saws offer more power.

Thus it will depend on what you need. For light-duty tasks, a heavy and powerful saw may be an unnecessary addition to your tools collection. However, when you want to handle more demanding tasks, a corded 7 ¼ inch saw is recommended.

With limited options, if you want to go cordless, you have very few options other than opting for a 6 ½ inch saw.

6 ½ inch circular saw blade pros

  • Smaller size translating to improved portability
  • Due to the blade being small does not require a lot of power and is thus power efficient
  • Most 6 ½ inch saws are cordless, which also helps with portability
  • 6 ½ inch circular saws are usually lightweight compared to 7 ¼ inch saws

6 ½ inch circular saw blade cons

  • Limited variety in that there are fewer 6 ½ inch blade options
  • Will struggle to cut through any wood over 1 inch thick

7 ¼ inch circular saw pros

  • Offers a better cut depth and can cut 2×4 with ease compared to a 6 ½ inch blade
  • 7 ¼ inch circular saws tend to have more power and can thus hand more demanding tasks
  • Most blades on the market are 7 ¼ inches. Therefore, it is easy to find a replacement blade or even a specialized blade e.g., for cutting metal
  • Can handle the cutting of certain hardwoods better than 6 ½ inch blade

7 ¼ inch circular saw blade cons

  • Larger blade sometimes translates to a heavier saw
  • Most 7 ¼ inch saws are corded, which limits portability.

Recommended best 6 1/2 circular saw blades

Bestseller No. 1
Diablo by Freud D0641X Finishing Saw Blade, Multi, 6-1/2" x 40"
  • Ultra thin kerf design equals fast and effortless cuts and Freud's TiCo Hi-Density carbide for extreme durability and cutting life up to 4 times longer than standard carbide
  • Perma-Shield Coating for less drag, gumming and corrosion
  • Cuts Like a Hot Knife Through Butter
Bestseller No. 2
ROK 6-1/2 inch Circular Saw Blade Set, Pack of 3
  • Bundle Includes 3 saw blades, Finishing Blade 40Teeth, Framing 18T, General Purpose Blade 24T
  • Contractor quality Thin Kerf Teeth with carbide tips
  • 5/8" Arbor, Fits most cordless circular saws

Recommended best 7 1/4 circular saw blades

SaleBestseller No. 1
Diablo D0724A 7-1/4" 24T Diablo Circular Saw Framing Blade
  • BUNDLE INCLUDES: 10 x Diablo 6-1/2" x 24-Tooth ATB Framing Saw Blades with 5/8" Arbor
  • TRACKING POINT TOOTH DESIGN: Tracking Point tooth design provides straight cuts and control carbide wear for up to 5x longer cutting life v/s other blades and 2x the durability in nail-embedded wood
  • ANTI-VIBRATION DESIGN: Enhanced Anti-Vibration design provides the ideal combination of stability and rigidity
Bestseller No. 2
Freud D0760A Diablo 7-1/4" x 60-Tooth Ultra Fine Finishing Circular Saw Blade with...
  • 7-1/4" diameter 5/8" arbor with diamond knockout 0. 059"
  • 7-1/4" 60T Diablo Ultra Finish Work Table Saw Blade The Diablo Ultra Finish
  • Used in miter saws or table saws,

Conclusion

So which blade size should you opt for? Well, it depends on what you want to do with the saw. On the one hand, the 6 ½ inch blade is ideal for light-duty tasks around the house. Also, due to its smaller size, you perform cutting jobs in tight spaces with ease.

The 7 ¼ inch blade is an all-round blade. It is for this reason that most circular saws come with this blade size. It has a better maximum cut depth and can handle more demanding tasks. Thus if you want a saw for performing a diverse range of functions, go for a 7 ¼ inch blade size.

In terms of an outright winner between the two, we would have to go with the 7 ¼ inches. For the simple reason that it is a more complete and available blade size.

Last update on 2020-09-22 / Affiliate links / Images from Amazon Product Advertising API

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