DEWALT DCS391 Cordless 20 Volt Circular Saw
Тәжірибелік нұсқаулар және стиль
Carpenter and builder Rob Robillard from www.AConcordCarpenter.com demonstrates the DEWALT 6-1/2" 20 Volt Circular Saw DCS391. Read review here: www.aconcordcarpenter.com/dewa...
It took me a long, long time to warm up to cordless circular saws. I guess it was the lack of power and run-time associated with these earlier generations saws that made me resist putting down my corded saw for a battery operated one.
Today's cordless circular saws are more powerful, cut faster and last a lot longer than their predecessors and that is why we at Concord Carpenter are now starting to take them more seriously.
DEWALT sent us their DEWALT 20V x 6-1/2 Cordless Circular Saw DCS391 with 4.0 Ah batteries to review and evaluate. We did a video review on this saw several months back but with the 3.0 Ah battery pack.
We the 4.0 ah battery and saw at our workshop to see how it performed not only individually but also in a head-to-head comparison against five other major competitor models. READ the Head-To-Head Comparison. [coming soon]
First Impression:
The DEWALT 20V 6-1/2 Cordless Circular Saw DCS391 shipped in a solid hard plastic tool storage case that secures "solid" with two durable metal hasps. Out of the box the DEWALT is a lightweight and compact saw weighing 8 pounds. out of the box and when set to 90-degrees the blade was dead square to the magnesium base plate as was the bevel gauge was also accurate. I immediately liked the over sized knobs and levers allow the user to easily adjust and operate the tool.
Attaching the saw blade was extremely easy and dummy proof. The blade lock button is easy to reach, engage and has no obstructions. The saw has on board, secure and snug storage for an Allen wrench that removes the blade.
Ergonomics Important
The DCS391 has comfortable rubber over-molded handles and the main handle has an ambidextrous safety trigger.
DEWALT has invested a lot of time, money and research into designing their tools to provide superior balance and ergonomics. These efforts can be seen in their cordless drill handles all the way to the placement of the handles on tools like this circular saw. Finding that sweet-spot or perfectly balanced grip nirvana and immediately noticed "ergonomic feel" helps the user to make a more accurate cut, improve the overall tool-using experience and most importantly reduce fatigue.
Tool Adjustments and Cutting Specs
The DEWALT 20V Max 6-1/2 Cordless Circular Saw DCS391 has a depth of cut of:
2 1/4″ inches when set at 90-degrees and 1-5/8″ inch depth of cut when set at a 45-degree bevel. The bevel adjustment will allow the saw to be set at and cut a 50-degree bevel.
The markings for the blade depth and bevel gauge are engraved on the metal housing of the tool. The blade depth gauge is behind the saw guard and I found it difficult to see. I typically use this guide as a quick reference for non-money cuts and will always refer to my tape measure or folding ruler for important depth adjustments.
The blade line of site is excellent on both sides of the blade and the saw plate has square cut-out at the front of the base plate for lining up a 90-degree or 45-degree cut. On this model the cut-out was accurate and lined up perfectly in our tests.
Power:
I found the DEWALT DCS391 to be a powerful saw that did not bind easily in framing lumber which was a nice surprise. I've used this saw on the job-site doing light framing and trim work and it cuts cleanly and surprisingly well. We recently tested this saw by cutting repetitive rips in 3/4-inch Advantec plywood which resulted in the saw making 19.5 eight-foot rips out of the plywood equating to 156 ft of total plywood cut.
NOTE -- we tested this saw with a 4.0 ah battery. This saw does not come with this battery. You either have to purchase one or already have one in your battery platform.
Possible Negative Issues
In order to shave weight DEWALT uses a magnesium shoe plate and a hard "PVC type" retractable blade guard. While this guard seems extremely durable, the fact that it is plastic and at the bottom of the tool, it is highly likely that it ill sustain damage from drops, hard put downs and possible drops in frigid temperatures.
The way the 4.0 Ah battery engages in this tool means that the user has to flip the tool over to view the battery fuel gauge and I did not like it. It's not a natural movement and necessitates twisting the too with your wrist.
Overall Impression
I liked the compact size and lightweight feel of the DEWALT DCS391. When paired with the 4.0Ah battery this tool has the power and run-time to keep you going on a job-site. I was able cut framing lumber with ease as well as rip 156 feet of 3/4 plywood. That is a decent amount of run time and when complimented with a second battery this tool will allow you to work a long time between charges.
Пікірлер: 89
I just reviewed a newer saw with the 4.0Ah battery - check it out here www.aconcordcarpenter.com/dewalt-20v-max-6-12-cordless-circular-saw-dcs391.html
Thanks for the feedback John
You do the best reviews on tools man, I have this saw and agree with you, I hope the manufacturers listen to you
Thanks for a great review...im interested in this saw and new battery system. Regards from the UK.
Good honest review and good job catching the line sight issue. Thats a must to have accurate on a saw. Everything else looks pretty well built though. The one thing Dewalt does best though is listening to the users so you can expect them to come back with an even better design and probably brushless motor.
2:10 Damn that running blade came close, scary. Thanks for the video though, very informative!
got this a couple weeks ago and i gotta say i love it !
Thanks for the comment Jeff! Plastic definitely makes me nervous.
@ThePako1984
4 жыл бұрын
I agreed 👍
Great review
Totally agree with the line of sight. Used mine for the first time yesterday and noticed the same thing. It's a pain in the butt.
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Before miter saws were popular carpenters used to own both saws. the reason was to be able to miter to both sides [left / right]
You're spot on about the line of sight issue!!! Worst thing about an otherwise great tool
Does this saw have detents on the angle gauge at common angles like 45° & 22.5°?
Hello, please correct the title: 391, not 931. Thanks for the honest review!
@slapnut892
4 жыл бұрын
@Donna Peroche apparently they do. I got through to them.
how do you lock it , need to tighten blade .how ever using the allen wrench the blade moves
Olá amigo qual das marcas e a melhor dewalt ou milwaukee
Thinking about buying the saw only do you know if it works with the 2.0 batteries? Nice video man thanks for the info
@ConcordCarpenter
10 жыл бұрын
Its a great saw and on a second tool we reviewed the site line was accurate. I would not not recommend using the 2.0 Ah battery - never tried it - I assume it would work but way less run time
your very right about the retactable guard being plastic. this saw looks an awful lot like the makita which has the same type of guard
can the switch be replaced
All I want to know is how to adjust saw vlade to allow maximum cut
The L2 version of this saw comes with two batteries but not a rip fence.
The blade on this saw is on the left hand side. The DeWalt 7-1/4 inch saw has the blade on the right side. So does every other circular saw I've used. Why the difference?
@gregr1154
4 жыл бұрын
most corded saws are blade-right, and many cordless ones are blade-left. PITA? meh.
It's a great saw and if your concerned about a dead straight line you make a guide anyway Lasts ages with 4.0 ah batteries am a carpenter tradesman
Darwin, remember Bambi and the rabbit Thumper? You should take a lesson from the "Thumperian principle" my friend.
can the height of the saw (or depth) be adjusted up and down
@ConcordCarpenter
9 жыл бұрын
randomrazr Do you mean can the depth of blade be raised and lowered? Yes
@randomrazr
9 жыл бұрын
A Concord Carpenter okay great, we have one part of a floor that has rotton one and i was told to get a saw like this to cut it out
@randomrazr
9 жыл бұрын
A Concord Carpenter thanks! last question, dewalt makes another circular saw, the model: DCS373M2 is it better or different?
I meant bevel NOT miter
you must be very nervous cause most tools these days are mostly plastic.
What is the acctual duration of the battery? If im working on a outdoor table and benches. I will be sawing alot of scaffolt wood 195mm x 30mm. Would it last a hour, couple of hours, day ??
@ConcordCarpenter
10 жыл бұрын
Easily a day
@tdsviper
10 жыл бұрын
Ok, that's pretty good. I was looking at a combo pack from DeWalt. About $2400 for a jigsaw, circsaw, recipsaw, hammer drill, hamer/screw drill, impact drill, grinder, 4 battery's. Ow yea and a light ;) Is that a nice deal?
@MrJames6674
10 жыл бұрын
A Concord Carpenter i see your worry on the pvc gaurd just so you know i have an older version of what you have that i got in 09 and i havent had any problems up here in ALASKA
@ConcordCarpenter
10 жыл бұрын
MrJames6674 Great feedback - thanks
@ConcordCarpenter
10 жыл бұрын
tdsviper rea this: www.toolboxbuzz.com/head-to-head/best-18v-cordless-circular-saws-head-head/
Why do the 5 tool combo kits come with a DCS393?.. Also why do these saw not have a laser guide?
@ConcordCarpenter
9 жыл бұрын
Unknown on the laser guide. DEWALT and other manufacturers pick their combo kit tools for marketing reasons. Read our 18 volt combo kit review on ToolBoxBuzz.com to learn why
@wilburfinnigan2142
4 жыл бұрын
Jax Kat actually the DCS393B Is a better saw, More amp, more RPM 5150, still 61/2" blade !!! And they look the same !!! Educate yourself, read the info and make your decision !!!
@wilburfinnigan2142
4 жыл бұрын
@@ConcordCarpenter Be AWARE DeWalt makes THREE 6 1/2" 20 Volt circular saws and they ALL have different specs !!!! DCS391B The cheap one 3700 RPM 380WHO, the DCS393 is the most powerful at 5150 RPM 460 WHO and there is another lessor powered one and they are all close to the same price. Watch especially in the tool kits as they will put the low powered one in them to meet a price point. They do also offer the DCS393 Bin kits just Check the specs !!!!
That's impossible you obviously have a lemon saw
why not watch the blade when cutting?
@ConcordCarpenter
8 жыл бұрын
Old habit I guess
@gregr1154
4 жыл бұрын
don't watch the blade, watch the guide or fence
How do you change the blade?
@ConcordCarpenter
8 жыл бұрын
+Paul V Wrench and arbor lock - easy
@Dave1ize
8 жыл бұрын
+A Concord Carpenter I just bought the saw. What is the V Wrench, what is the arbor lock????
@Dave1ize
8 жыл бұрын
+Paul V I've been trying to use the hex wrench that comes with the saw.
@ConcordCarpenter
8 жыл бұрын
+Paul V yes the hex wrench and push the arbor lock to lock down the arbor / blade
@Dave1ize
8 жыл бұрын
+Paul V I've literally taken a hammer to the hex wrench to try to get the screw loose.
Throw that krapy stock blade and buy a thin kerf blade,makes the saw battery last longer and it makes the saw cut straighter.
@ConcordCarpenter
10 жыл бұрын
good point
@highcountrytimber
10 жыл бұрын
Thanks. Have you ever done a saw test for power and performance gain with different blades? I run Diablo blades in all my circular saws and miter saws and table saws, I can tell you they make a tool work better! Get a gram scale and weight a knew factory blade and Diablo thin kerf and the results are shocking!,I can guarantee you will never go back to normal blades!
@ConcordCarpenter
10 жыл бұрын
highcountrytimber we ran different blades and a power test here: www.toolboxbuzz.com/head-to-head/best-18v-cordless-circular-saws-head-head/
@highcountrytimber
10 жыл бұрын
Will check it out.
@thxmateoli
8 жыл бұрын
The best 18v circular saw is the makita XSH03z brushless , sells for about $189 on ebay. This saw has the power of full size corded saws and has the longest run time.
I have this saw and my brother has the Milwaukee fuel saw I'll tell you this saw is almost as powerful as the milwaukee which is brushless in real you couldn't tell which is more powerful if you have a contest than it is slightly more powerful not worth the extra cost power no wonder dewalt hasn't come out with a brushless saw yet their brushed saw is almost as powerful as milwaukees brushless
Very disappointed in mine. Handy but no power. Struggles through a 2x4. Forget about ripping anything .... not enough power. Batteries are fine. My other dewalt tools work fine. Now this saw barely revs up. I'm not happy.
why would you even use a big saw for trim work? they are to heavy for trim pieces and if you do need a big saw then you should use a chop saw with a big ass back to put the wood against. other than that use a pull saw or a coping saw
@ConcordCarpenter
9 жыл бұрын
Many times we work up off staging and ladders - you can't do everything on a mother saw. This saw will also cut framing and plywood
@richardmcginnis5344
9 жыл бұрын
that's what the ground guys are for
@robalan57
8 жыл бұрын
What grounds guys? They are walking their dogs and don't give a.......about me. :-)
"i get nervous when i see plastic on tools" - um, you're holding plastic tools since the 80s. double insulated, anyone?
@ConcordCarpenter
4 жыл бұрын
Video is 7 years old
@gregr1154
4 жыл бұрын
@@ConcordCarpenter haha! yeah, and it's STILL plastic! and apparently saw is still in production being sold. i'm eyeing one on amazon, but winter is coming so...
This video was a result of changing the saw blade on dewalt ds391. Worthless.....
Get the fucking title right!
@ConcordCarpenter
4 жыл бұрын
Grumpy Cat wow you are grumpy
@slapnut892
4 жыл бұрын
@@ConcordCarpenter well what do you expect? Someone else asked 3 years ago and it still hasn't been fixed. You're professionals, aren't you?
@ConcordCarpenter
4 жыл бұрын
Grumpy Cat whats wrong with the title?
@slapnut892
4 жыл бұрын
@@ConcordCarpenter the tool is model 391, not 931. The title is misleading.
@ConcordCarpenter
4 жыл бұрын
Grumpy Cat Well that would’ve been a lot easier to say than get the fucking title right. Looks like I had a dyslexic moment