Kobalt 20V Lithium Cordless Combo Kit Review


I have to say I am a little torn with this review and the Kobalt tools.  I can’t say I use Kobalt tools a lot, but I do like them.  When I first found out Kobalt had 20V tools, I was excited to see what they did and what’s new with them.  After looking more into the tools, I found out that not a lot was changed.  There was no brushless motor or any noticeable overhauls. While some of the specs of the tools increased, for the most part they are the same.  Now with that said, does it really matter?  Kobalt isn’t trying to compete with brands like Dewalt, Hilti or Bosch.  Kobalt is trying to go after the homeowners and maybe one man contractors.  So does a brushless motor really matter?  Most homeowners won’t be using their tools 8 hours a day for 5 days a week.  So with that said, I can’t be all that disappointed as these tools are still a great option for the homeowner.  In fact, if you check out Lowe’s site and look at the 18V version, they get high praises for people who use these tools and that is what is most important.  Kobalt did make one important upgrade and that was a 4 A/h and 2 A/h battery.  So let’s check out this kit.

This is a four piece combo kit, model K20-LC4000A.  The kit comes with a drill, impact driver, reciprocating saw, flashlight, charger, 1- 4 A/h battery, 1-2 A/h battery, a bit, reciprocating saw blade and a carrying bag.  One thing to note is I love that the kit comes with a larger and small battery.  It allows the user to match the battery with their work.  If I am only doing a little bit of work and don’t need the longer run time, I can use the 2 A/h battery.  One thing to note is it would be nice if Kobalt had a kit that included a circular saw. So let’s take a look at each one.


Kobalt 20V Drill

Kobalt 20V Power Tools 02The drill is a little heavier than I expected.  It has all the bells and whistles of other drills such as clutch settings and 2 speed gear box. Compared to the 18V drill, it has the same RPM of 0-450, 0-1,600 RPM.  The torque has increased from 455 in-lbs to 485 in-lbs., not a huge jump.  The variable speed trigger is easy to control.  All in all this is a powerful drill that can do some serious work for the homeowner.


Kobalt 20V Impact Driver

Kobalt 20V Power Tools 06This is my favorite tool in the kit.  It’s compact and powerful.  Compared to the older 18V, this does have some increase in speed and power.  The 18V is 0-2400 rpm with 0-3200 IPM.  The 20V is 0-2500 RPM with 0-3300 IPM.  Also, the overall torque has increased 270 in-lbs to 1550.  For a homeowner looking for a great impact driver, the Kobalt is an easy winner, powerful and compact, plus easy to control.


Kobalt 20V Reciprocating Saw

Kobalt 20V Power Tools 08Having a reciprocating saw is nice, but I would like to see a kit with a circular saw as I think that would get used more.  I checked around but I don’t see that Kobalt offers the 20V circular as of today.  As far as power and options, this is a nice saw.  It has a variable speed trigger and adjustable shoe.  There is also a switch on the side to switch it for orbital for more aggressive cutting.   The tool has a tool-less blade change system with a 1-1/8″ stroke length.  The strokes per minute are 0-3100.  For a reciprocating saw, this has good power and good balance for the homeowner.


Kobalt 20V Work Light

Kobalt 20V Power Tools 13The kit also comes with a work light.  The light is actually pretty cool.  It has a 24 LED array with 180° pivoting neck and 270° rotating head.  I can’t say it’s the brightest light you have ever seen, but it does a great job lighting up dark areas.  With the range of movement, it is a nice light.



Charger and Batteries

As noted above, the kit comes with 2 Lithium batteries.  1-  2 A/h and 1-4 A/h battery.  With each of these batteries, you will get some great run time.  I really like how Kobalt offers both of these batteries.  For the saw, you can use the 4 A/h battery and the impact I can just lower the weight and use the 2 A/h battery.

Kobalt does make one of the coolest chargers.  The charger has an LCD display that displays a countdown timer.  The charger can charge both 18V and the 20V batteries.  For the 20V batteries, the charge time is 35 minutes for the 2 A/h battery and 45 minutes for the 4 A/h battery.   Both batteries comes with a three warranty.

Should you Upgrade?

Personally if you already own the 18V, I would stay put.  There is not enough of a jump with the 20V to justify the upgrade.  Plus, currently the line is rather small.  If you are new to Kobalt and looking for a combo kit, the 20V is a nice option over the 18V.  Now remember the 20V is pretty much the same as an 18V in regards to volts, it’s more of a marketing idea like how Dewalt jumped to a 20V.  But considering you get the upgraded 4 A/h and 2 A/h battery, it is always nice having the longer run times.

Overall I do really like this kit and think it’s a great buy for the homeowner. With a 5 year hassle free warranty, it’s hard to beat.  While the drill is a little on the heavy side, the impact is great.  The reciprocating saw will pretty much meet any demand of the homeowners.  For the price of this combo kit, it’s pretty hard to beat.

amazonKobalt 4-Tool 20-Volt Lithium Ion Cordless Combo Kit





  1. I am loving the new layout of your website!

    The categories rating chart = excellent

    The unbiased thorough review = perfect

    About the author bio = great

    Everything feels really professional.

    As for the Kobalt 20v combo kit. I agree with everything you said it’s hard to beat. Good kit to have.

  2. Good review Eric..like shopping at lowes for
    boards ..nuts and bolts..stuff..have favorite
    driver nascar 48 jimmie johnson.kobalt seems
    be a ok brand that serve the masses.value
    priced to. used some kobalt hand tools ,do
    the job at hand..cordless tool seem to be ok.
    good set homeowner use at sweet price.milwaukee
    brushless what i been using..also have yellow
    in 12 volt max line..cost more ..yes…see
    how kobalt line could lure toolmongers in
    with low price..durable cordless tool.tool
    for everyone pocketbook…enjoy them.what
    ever you own.cheers

  3. I definitely like the new layout and rating system… But it seems pretty arbitrary to me unless you clearly distinguish the rating system (itself) on tools for pros versus tools for homeowners. I know you are very clear in your article, but if kobalt is all 90s… what is a dewalt, hilti, etc? 95? 97? 99? It just becomes meaningless unless you clearly distinguish the rating system somehow between pro/homeowner. What does it take for a tool to get a 90? an 80? 70?

    Please do not misunderstand me. You know I love this site and am a faithful reader/commenter. I just would love some greater clarification as to why it got the specific ratings that it did…

    That being said, I didn’t realize kobalt’s warranty was so long on batteries and tools. I would want to read the fine print, but that is pretty neat for a homeowner.

  4. I just picked up the Kobalt 5 piece kit (same a revised but with free Circular saw. It is EXCELLENT ! I really love the 4Ah & 2 Ah batteries & the drill & driver really rock. I paid $349 Canadian. I liked the tools more than the Ryobi and as well as much more expensive kits the cost double the Kobalt. This kit with a 5 year hardware (upgradable to 7 years) & 3 year battery warranty (also upgradeable) is all I will ever need and with plenty of room to grow. For a brief time I entertained a brushless driver , but soon realized that I don’t actually need it unless I wanted to pass it to another generation – by which time there will be much better battery technology any way…
    The 5 kit 20 Volt tools are much better than the tools in say the drill driver 2 piece kit (although the latter are very good in their own right for the price). I went in wanting to want the Ryobi but the Kobalt 5 piece combo methodically won me over and as a bonus will hopefully keep me just under the dog house radar when the family boss opens the Visa bill net month !


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