Model # DCS642120

Internet #203612150

Store SO SKU #714287

Makita 20 in. 64cc Gas Professional Chainsaw

Discontinued Makita

20 in. 64cc Gas Professional Chainsaw

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Frequently Bought Together

Product Overview

The Makita 20 in. 64cc Chain Saw combines a high power-to-weight ratio with easier starts and lowers vibration for a full range of applications. The 64cc engine delivers 4.7 HP and an engine speed of 13,500 RPM with an easy-starting automatic half-throttle lock and fully electronic ignition with optimized timing across all speed ranges. For extreme conditions, the slide-out baffle can be configured for efficient cold weather operation. Additional features include an easy-to-clean chain compartment for efficient clearing of chips, even when rip cutting and the advanced vibration dampens system is engineered to reduce vibration. The DCS642120 is ideal for forestry work such as tree felling and stripping.

California residents: see   Proposition 65 information

  • Easy starting automatic half-throttle lock
  • Chain compartment is easy to clean and clears chips away efficiently
  • Slide out baffle can be configured for efficient cold weather operation
  • Large metal spike bar for increased productivity
  • 2-point durable inertia/mechanical chain brake
  • Decompression valve reduces force required for starting
  • High power-to-weight ratio: weighs only 13.9 lbs. with chain
  • Maximum engine speed of 13,500 RPM
  • 1-year warranty
  • Includes series: 20 in. chain (523-102-072 Amp), 20 in. guide bar (445-050-665), universal wrench (941-719-131), torx wrench (940-827-000), chain cover (952-020-660)
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Bar Length (in.)
Chain Size
20 in.
Maximum Cut Diameter (in.)


CA (CARB) Compliant
CARB Compliant
Chainsaw Size
Chainsaw Type
Hand Chainsaw
Engine Displacement (cc)
Engine Type
2 Cycle
Engine Type
2 cycle 64cc
Antivibration Handle,Chain Brake,Tool-Less Chain Tensioning
Fuel Tank Capacity (oz.)
Handle Type
Rear Handle Chainsaw
Power Type
Product Weight (lb.)
Usage Type
Professional Chainsaw

Warranty / Certifications

Certifications and Listings
CSA Listed
Manufacturer Warranty
1 Year Warranty

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Customer Questions & Answers

Does Makita make any other style chainsaw other than the 20" 64cc professional

Asked by: buckrub
Yes, but it will be red and black and be stamped Dolmar. They are the exact saw made in the same factory. 7110, 7310 and 7910. All based on the 6421 base model and have many parts that are interchangeable
Answered by: Kimball
Date published: 2016-09-10

what size chain fits on the 20" makita gas chainsaw model # dcs421

Asked by: diamond
3/8" 0.050 chain with 72 drive links
Answered by: Kimball
Date published: 2016-09-10

is the carb adjustable

is the carb adjustable for high and low or is it auto tune ?
Asked by: woodchucker
Yes, to adjust the H screw you'll need their special tool or you can use a "pacman" carb adjustment tool that is available from Amazon
Answered by: Kimball
Date published: 2016-09-10

Does Home Depot rent this 20" chain saw ??? Need to cut down pine tree....

Asked by: Hcrccr46
yes. check there outdoor &garden tool rental
Answered by: woodchucker
Date published: 2015-12-02
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Customer Reviews

20 in. 64cc Gas Professional Chainsaw is rated 5.0 out of 5 by 5.
Rated 5 out of 5 by from Great Power 5-Stars across the board! Saw came reasonably packaged. Only assembly required is to secure the bar/chain to the saw body using two nuts (included) and an adjustment of the chain tension using a screwdriver (included). Saw also includes chain guard and small tool kit with the tools needed to adjust items like bar tension, spark plug removal and speed/oil adjustment. All the basic tools you need to keep it running like a champ. Instructions are easy to follow regarding operation, assembly, adjustment, etc. (in multiple languages). READ the instructions. Thinking "I know what I'm doing since I've owned a number of saws" I skipped the instructions ... initially. Managed to flood it the first time ... ooops. Time for a quick read & found out that the choke also advances the throttle for cold startup. Pulled the plug, cleared the cylinder & first pull it was running! Running: The saw has crisp throttle response and rev's quite high! Plenty of power to handle the pine trees I threw at it (up to 30" in diameter). The included blade was throwing chips fast & clean! Chain held an edge without sharpening for 4, 60' tall pine trees; from limbing to cutting it all up in 12" long rounds. By then, I was tired & the chain was starting to get dull from all the pitch on the trees. No issues with cold or hot starting of the saw. First or second pull each time. Chain adjustment is easy; loosen the two nuts & adjust the tension with the included screwdriver - re-tighten the nuts. Check the oil reservoir & cut away! Seems to get good fuel "mileage" I used just under 1/2 gallon of 50:1 fuel mixture & about the same amount of bar oil. Little to no vibration in the saw & it felt well balanced for operation. The compression release makes pull starting a little easier, though I didn't find a need since it is easy to pull. Cleanup: Access to air filter & dis assembly for cleaning was easy with the supplied tools. Clean operation: I chose to NOT mix my own fuel with this saw to give a real-life comparison of operation between this saw & my others that I mix my own fuel for. Since this saw was new, I chose to only run it with pre-mixed (engineeried) fuel available at Home Depot. After running about 1/2 gallon of this thru the saw, I pulled the plug to see the difference in the fuel. Plug looked like NEW! No black build-up like I normally find with 2-stroke motors. I also noticed a total lack of "blue smoke". Burnt clean, ran crisp and appears to be a big difference in quality operation. Worth the extra $$ to me! Chain: My only "complaint" is lack of 20" chain availability that fit this saw at my local Home Depot stores. I'll have to order online. This saw would also benefit from a 24" bar since there is plenty of power. At no point throughout the day did this saw 'lug down' while cutting. Final thoughts: Cut as good as any of my other 'professional' saws. Just as easy to fill (fuel/bar oil), adjust & use!
Date published: 2014-11-24
Rated 5 out of 5 by from Great saw that holds its own against thr competion Love the saw. Cuts great with no issues. I typically use Stihl saws (have 3) to cut firewood and went out on a "limb" to try this one. I couldn't be more happy. I use Makita power tools for work and have great success so I had faith this would be just as good. The only con I can say is that here in California this saw WILL NOT start if I follow the directions. Instead I don't choke it and I don't push the decompression button. I just pull the cord and it starts 2nd pull every time.
Date published: 2015-03-12
Date published: 2015-01-31
Rated 5 out of 5 by from Love this saw! Works better than my Stihl saws. Thought it was going to be a gamble. This is a Dolmar and it rips and it's very reliable after 2 years
Date published: 2015-12-14
Rated 5 out of 5 by from great saw for the money good power starts easy, has alot of power for the size of the saw, i am impressed. i would recomend it.
Date published: 2016-07-09
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