Best Lawn Mower Blades for Thick Grass 2021 [Top 5 Picks]

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Thick grass can be a chore for your lawnmower and yourself. There are several factors that determine whether your lawn will grow thick and require more time and effort on your part.

The best lawn mower blades for thick grass will depend upon various aspects of the growth pattern of your grass to help you reach the perfect cut.

Thick grass will put a strain on your lawnmower, causing the blades to become blunt or fail. If you want to keep your lawn looking its best, you’ll need to look for sharp blades.

However, not every blade is of the highest quality. A sharp blade on your lawnmower not only allows the production of a quality cut but also makes lawn mowing much quicker. It’s also crucial to look for a durable blade that will last longer and require less maintenance.

Comparative Analysis of Best Lawn Mower Blades for Thick Grass

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API

What’s the best lawn mower blade for thick grass? Of course, this is subjective. Maybe you even try to cut grass with a dull blade.

Top 5 Best Lawn Mower Blades for Thick Grass (Critical Analysis and Review)

  • MaxPower 331740S – Best Overall
  • MaxPower 331737S – Best Lawnmower Blades for Tall Grass
  • MaxPower 331040 – Best Budget
  • Toro 22” Recycler – Best Lawn Mower Blades for Leaves
  • EGO Power+ AB2101 21-Inch – Best Commercial Lawnmower Blades

Lawnmower blades may not be the first thing you think about when the spring comes and it’s time to start to mow the lawn.

But just like air filters, car oil changes, and other seasonal maintenance, they are essential to keep your lawnmower running at top performance.

And if your lawn is a bit on the thick side, you will need to rely on a very sharp blade because it’ll provide better cutting efficiency for thicker grass.

#1. MaxPower 331740S – Best Overall

Sale
Maxpower 331740B 22 Inch Blade for 22 in. Cut...
  • Includes 1 mower blade for many 22 in. cut Craftsman, Husqvarna and Poulan mowers
  • Replaces OEM #'s 420463, 421825, 532-421825, 437601, 532420463 and 532437601.
  • Also fits Craftsman CMXGZAM100130
  • Measures: 22 in. L and 2-1/2 in. W
  • 5 point star center hole

Last update on 2021-07-27 / Affiliate links / Images from Amazon Product Advertising API

This lawnmower blade fits several manufacturers with a variety of mowing machines, making it an excellent replacement for most commercial models.

It is 22 inches long, so it is suitable for lawn mowers of medium to large scale. It also has a five-point center hole, which ensures it will match without difficulty with most modern lawnmowers.

All in all, it is an incredibly durable blade made of high-quality steel manufactured right in the United States. It gives it the ultimate longevity and outstanding cutting strength once you have sharpened yourself.

The blade may not be the sharpest right out of the bag, but you can sharpen it to your specifications without too much trouble if you have a metal filer.

However, the blade does not weigh too much, so you can use it for adjustable lawn mowers that can increase the lift rate of your blades through internal mechanisms.

This versatility is perfect to trim your lawn at different times of the year while also retaining the ability to collect grass cut from the machine so that your yard is not polluted.

Another big bonus is the inexpensive asking price, which makes this a great replacement blade if your current blades start to get rusty or have recently broken.

You can easily pick up a few of these blades so that in an emergency you will always have a replacement on hand.

Ultimately, for most applications, it is a phenomenal lawnmower blade and should deliver quality efficiency irrespective of which machine you combine it with.

Pros

  • Made of high-quality steel
  • Features a versatile mount for modern lawn mowers
  • Affordable asking price
  • Good length for most mowers

Cons

  • Has to be sharpened initially in most cases

#2. MaxPower 331737S – Best Lawnmower Blades for Tall Grass

Maxpower Craftsman Replaces 165833, 175064,...
  • Replaces OEM numbers 165833, 175064, 189028, 406712, 176135, 159267, 008020, 175052, 406706, 406712X431, 531300765, 532 15 92-67, 532 17 50-52, 532159267, 532165833, 532175064, 532176135, 532189028, 532406712, 539111878 and PP23020
  • Also fits Craftsman CMXGZAM100129
  • Includes 1 mulching blade for many 21-in cut Craftsman, Husqvarna, and Poulan mowers
  • Measures 21-in L x 2-1/4-in W
  • 5/8-in center hole diameter

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API

Unlike the last pick, this is the same manufacturer’s mulching blade and it is made to the same high quality that we have come to expect from MaxPower.

The blade is the perfect choice to mulch the grass you just cut and spit it out on the lawnmower’s side. It provides the soil with an effective fertilizer.

It measures 21 inches long by 2 1⁄4 inches wide and is suitable for medium-sized machines used by most owners of the residential lawnmower.

It is made in the USA and has a middle hole of 5/8 inches. When buying this mulching blade, be sure to check the mount currently used by your lawnmower to make sure things match.

There is an optional list for all the blades or lawn mower models that can work included with the purchase or on the back of the main sticker to make things better.

Besides all these upsides, it’s an incredibly affordable replacement blade that’s even better than MaxPower’s last pick we’ve been looking at.

This mulching blade, however, is a color of dark steel. While this does not affect its quality, it makes it a little harder to clean as it is more difficult to locate dirt or grassy debris on the blade, especially in low light.

Clean the blade in bright light to ensure that you check it completely for dust.

Yet ultimately, for most commercial or residential lawnmower users, we would be hard-pressed to suggest another inexpensive mulching blade. In case of an emergency, pick up a pair to always have a replacement on hand.

Pros

  • Very affordable mulching blade
  • Mulches grass effectively
  • Can fit a variety of lawn mower models
  • The Center hole is well-cut

Cons

  • Dark color makes cleaning the blade difficult

#3. MaxPower 331040 – Best Budget

Sale
Maxpower 331040B Universal Replacement Lawn Mower...
  • Universal replacement blade
  • Comes in 1-inch center hole
  • Each blade includes a cover washer
  • Also includes 6 reducing washers 3/8-inch, 7/8-inch, 9/16-inch, 5/8-inch and 13/16-inch
  • Measures 20-inch length by 2. 25-inch width

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API

Check out this universal replacement blade for those of you who have a lawnmower of a special make or model, or if you’re not sure if the other two blades we tested would fit perfectly.

It is designed to work with any lawn mowing machine capable of taking 2.25-inch long 20-inch blades. This is achieved by including six reduction washers that can adjust the center cut hole’s fit, which is by definition 1 inch in diameter.

For many modern washing machines, this is a little tall, but it is ideal for several older models. If the main hole does not properly suit your unit, simply fit into its surface one of the provided washers and you should be able to manage a fit.

The washers come in an inch 3/8, an inch 7/8, an inch 9/16, an inch 5/8, and an inch 13/16. These should cover all the major mount hole sizes used in the modern era by most lawn mower manufacturers.

As a consequence, if you want to share blades with different size mowers, you can even toggle this blade between different lawn mowing machines. The knife is a dark color and comes out of the box well sharpened, although it will never go unwarranted once you receive it.

The dark color makes it a little easier to clean the blade than with a silver blade, but ultimately it is a flexible substitute that should make finding a new blade for your niche mower a less difficult task.

As with all MaxPower’s lawn mower products, it is also quite affordable and is also made in the USA. The one downside that we have to mention is the washer looseness; you may want to make sure that the blade is properly tightened before spinning it up.

The washers will shake or spin loose especially at the start, causing havoc at the bottom of your lawnmower. Just make sure to secure them properly and you should have no trouble whatsoever.

Pros

  • Comes with six washers to alter its fit size
  • Is made of durable and long-lasting steel
  • Fits the vast majority of lawnmowers
  • Easy to swap the washers out

Cons

  • Sometimes the washers are a little loose

#4. Toro 22” Recycler – Best Lawn Mower Blades for Leaves

Sale
Toro 22" Recycler Mower Replacement Blade 59534P...
  • Toro tooth mulcher blade
  • Replaces 108-9764-03
  • Tooth mulcher blade
  • WIDTH: 2-1/4" , C. H. DIA: 7/16" , THICKNESS: 0.1500" , LENGTH: 21-11/16", DIAMETER OF OUTSIDE HOLES: 0.3820"

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API

This blade is a perfect replacement for mulching with two pairs of teeth on either end of its length. It is 22 inches long and is ideal for lawn mowers of medium to large size.

The teeth make it an outstanding mulching tool that can make even thicker or harder weeds work for the rest of your yard and make them a superb fertilizer.

The blade is made of strong and durable steel and has a dark paint finish that prevents as easily as unpainted blades from corroding or accumulating damage.

This makes it a bit harder to clean, but all in all, it’s a pretty long-lasting blade and it’s a great choice if you don’t like very often buying new replacements.

This blade has three mounting holes for you to choose from, so it will work without too much trouble on most modern lawnmowers.

Its height can also be adjusted if you have the right mower model, so the performance you get from this blade can be further customized.

As far as sharpness is concerned, it does a good job of cutting through thicker or tougher turf, but with your own metal file, it should be constantly sharpened as the edges wear down quite quickly.

This is a little drawback as blade sharpening repair does not usually have to occur very often. But we’re willing to pass it as this blade is ideally used to mulch thicker grass that still puts up more of a fight.

It’s cheap and with your order, you get free shipping, so if you want anything heavy-duty that can shape your yard without much trouble, pick up this mulching blade.

Pros

  • Very durable and long-lasting
  • Can mulch even thicker grass without issue
  • Is affordable and comes with free shipping
  • Features two pairs of teeth on either end

Cons

  • Needs to be sharpened frequently

#5. EGO Power+ AB2101 21-Inch – Best Commercial Lawnmower Blades

EGO Power+ AB2101 21-Inch Lawn Mower High Lift...
  • Enhance the bagging efficiency of your 21" EGO Power+ lawn mower
  • Specifically designed for use while bagging clippings with EGO Power+ 21" Lawnmowers
  • Not recommended for use with the mulching plug
  • Factory sharpened steel blade for excellent cutting performance
  • Delivers a clean cut to promote lawn health

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API

This 21-inch lawnmower blade is a variant of a high lift designed for lawnmowers that handle unfavorable yards and really tall grass. It’s a phenomenal option to pick loads of grass in heavy-duty bags for high-powered lawn mowers or big machines.

This lawnmower blade was specifically designed for use with lawnmowers gathering their clippings in a jar. It uses a sharpened steel blade from the factory that delivers excellent performance regardless of what type of grass or weeds you are cutting.

It needs to be sharpened from time to time, but usually, it offers an exceptionally clean cut that can result in short work of overgrowth in your yard.

That’s why we think it’s a great option for heavy-duty lawnmowers or professional mowers who often have to take their machines into wild backyards.

It also features on either of its arms a sloping arc. As a result, the lawnmower blade collects grass trimmings efficiently and reliably throws them into the bag.

Lesser quality lawn mower blades often fall grass trimmings under your lawn mower’s belly, but this blade does a phenomenal job of not giving away anything.

It features a circular mounting hole but, especially if you have some fitting washers to adjust the size of the hole, you can make it work with most modern lawnmowers.

Be sure, however, to weigh your mount before you buy. The only drawback is the relatively high demand rate, which for a single blade is a little on the expensive side.

If you want something long-lasting and heavy-duty, it’s still quite a worthwhile investment, but be mindful that this is more designed as a primary-use blade that should work long to come instead of a cheap replacement. Take good care to get your buck’s most bang.

Pros

  • Very high-quality steel
  • Sharp edges make cutting easy
  • Good collection edges for gathering grass trimmings
  • Works for most lawn mowers

Cons

  • A bit pricey for a single blade

Buyer’s Guide

Reflect on these major factors when selecting a lawnmower blade to make sure you choose a blade that is right for your needs.

Standard or Deck Blades

Since it is the most versatile blade for lawn mowing, it is the most widely used blade for cutting dense turf. It rotates horizontally and creates airflow as it does so.

This clears dirt from the blade, keeping it free of grass. It is also one of the most affordable knives, which contributes to its success.

Many standard or deck blades are compliant with the majority of lawnmower models. If you’re having trouble deciding between blade sizes, go with the norm.

Low Lift Blades

Low lawn mower blades are great to trim a standard back or front yard and are suitable for smaller lawnmowers operating with less room. They are especially good for cutting grass in residential areas rather than wild weeds.

Furthermore, low lift blades do not need much maintenance and operate well for casual use. Low lift blades also do not take as much gasoline or energy as other blades, as they do not weigh or spin as fast as they do.

Medium Lift Blades

Medium raise blades are bigger and suitable for cutting thicker grass and some thinner weed types. You can use medium-lift lawn mower blades for commercial or residential mowing jobs due to their flexibility.

This versatility makes them one of the simplest to find. You will be able to find online or in-person medium-lift lawn mower blades in most markets.

They’re also perfect if you haven’t mowed your backyard in a while, but don’t want to ruin your lawn or the surface of the yard.

High Lift Blades

High lift lawn mower blades are ideal for lots of grass-second shearing.

These can clear the plenty of grass and weeds much easier than other styles of lawnmower blades and can work for longer because these appear to be constructed from more durable materials designed to withstand severe punishment.

Of course, they require more fuel or electrical power to operate on paper, but sometimes they can take less overall power because they can complete a mowing job in less time than the other two types of blades.

For commercial mowing purposes, high lift lawn mower blades are ideal.

Mulching Blades

Mulching lawn mower blades (also known as “gator” blades) are useful for composting cut grass and fine-tuning it down. The grass is then tossed to serve as fertilizer over your yard or outdoor space. If you want to use the same ground or help it grow faster, this can be advantageous.

All-Purpose 3-in-1 Blades

It’s best to invest in an all-purpose lawnmower blade if you want a blade that can handle both thick and thin turf. A Gator blade is another name for this kind of blade.

It has a medium rise and is intended to mulch grass cuttings. It can discharge grass debris back onto the lawn or into a pocket. If you’re dealing with a variety of grass varieties, this is the way to go. You will use the all-purpose blade to cut both thick and thin turf.

Most landscapers often favor this style of the blade because of its flexibility. You don’t have to sacrifice consistency when it comes to mowing. It encourages both dense and thin grass blades to grow healthier.

Blade Length

Of course, the size of your lawnmower blades will directly affect how well they match your chosen lawn mower and how much grass they will cut at the same time.

With larger devices, longer blades are ideal and can easily cut yards, but they can be difficult to use in tight quarters. With smaller lawnmowers, shorter blades are better and more maneuverable, but it takes more time to cut the same area.

All in all, trying to find replacement lawn mower blades of the same length as the blades that came with the initial purchase of your mower is a good idea. It means that whatever they make or design, the blades should match the machine.

Mount Type

Finally, find the mount type that is mounted on your lawnmower. Each lawnmower has mounted at the bottom of the machine that fits into a hole that is drilled into the middle of all lawn mower blades.

But for different mounts, some holes are made. There are two main types of mounts, though they are both star-shaped.

FAQs

What is a 3-in-1 lawnmower blade?

Mulching blades are often called3-in-1 lawn mower blades, due to their compact nature. The reason for this is that they can do a total of three jobs with a single blade.

They can make applications like bag clippings or discharge, chop in a fine mulch and leave them on the lawn.

How long do the blades of a lawnmower last?

It also depends on which type of mower you have. Motorized mower blades normally last for 20-25 hours until a lawnmower blade sharpener is required.

They’ll last for about 150-200 hours of mowing about the average lifespan. Okay, the Premium quality blades will last as long as 400 hours.

Why is my lawnmower blades miss the grass?

The most common reason your grass blades lack is due to the dull blades. There are however several other reasons for the cause that are not as common as the dull blades.

Tall/wet grass, damaged leaves, poor engine performance, low throttle, low floor, high lawn speed, full grass pocket, and clutch slip may also be the other factors.

Conclusion

With the best lawn mower blades for thick grass reviewed above, the MaxPower 331740S mower blade is a great choice for most modern lawnmowers in terms of all-around useful blades and should work for both residential and light commercial needs.

Alternatively, the Toro 22 “recycler mower replacement blade can be appreciated if you want a mulching blade that can effectively help you fertilize your yard even when you cut it down to size.

Best Lawn Mower Blades for Thick Grass Offers

Bestseller No. 1
MaxPower 561713B 2-Blade Set for 42' Cut...
MaxPower 561713B 2-Blade Set for 42" Cut...
Also fits Craftsman CMXGZAM110136; Includes 2 blades for many 42-in cut Poulan, Husqvarna, and Craftsman mowers
Bestseller No. 2
Maxpower 331528B Mulching Blade for 21 Inch Cut...
Maxpower 331528B Mulching Blade for 21 Inch Cut...
Replaces OEM numbers 742-04100, 742-0741, 742-0741A, 942-0741 and 942-0741A; Also fits Craftsman CMXGZAM100067
Bestseller No. 3
Maxpower 561556 (2) Blade Set For 42' Cut MTD, Cub...
Maxpower 561556 (2) Blade Set For 42" Cut MTD, Cub...
Replaces OEM numbers 742-04308, 742-04312, 942-04308, 942-04312, 119-8456; Also fits Craftsman CMXGZAM110108
Bestseller No. 4
MaxPower 561739B 2-Blade Set for 46' Cut...
MaxPower 561739B 2-Blade Set for 46" Cut...
Replaces OEM numbers 405380, 532-405380, and PP21011; Also fits Craftsman CMXGZAM110146 and CMXGZAM110147
Bestseller No. 5
Maxpower 561545B 3 Blade Set for Many 50 in. Cut...
Maxpower 561545B 3 Blade Set for Many 50 in. Cut...
Fits 50" Cut RZT Series tractor; Made in USA; 3 blades included; Center hole Designed to fit MTD 6 Point star

Last update on 2021-07-28 / Affiliate links / Images from Amazon Product Advertising API