60 of 75 people found the following review helpful
Expected a lot more from DeWalt,
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This review is from: DEWALT DCD775KL 1/2-Inch 18-Volt Cordless Compact Lithium-Ion Hammer-Drill Kit (Tools & Home Improvement)I was tired of buying replacement batteries for my other cordless drills, and saw this one on sale, and thought I would give it a try as I had never owned a DeWalt.
I have owned this drill for about 5 months, and yesterday had a project that involved drilling 98 screws, 2.5 inches long through treated 2x4's and into landscaping timbers. I started with battery that was already in the drill. I figured it would go dead before I finished, but I had the spare in the charger and it was ready to go. In less than 10 screws I had to change batteries, and before I hit 30 screws, both batteries were drained. I got out my old trusty battery drill from the place in Chicago that don't own a tower anymore and it finished up the work with no problems. Needless to say, it was a pretty disappointing performance of a high priced drill with higher priced batteries.
The pros for this drill are: It is light weight. Has a cute little light that lights up what your going to drill.
The cons for this drill are: The chuck has about a quarter of an inch play, which I assume is for the hammer part of the drill, however until you get used to it, your going to tear up your finger or scratch what your working on because of it. It has an extremely short battery life, and when it decides to stop, it just does, not a slow down, just dead. When you work to get your parts in place, in an awkward position and go to use the drill and find out it is dead, you just want to throw the thing. It has a cute little light that shows what your drilling.....but I have not found a practical use for that cute little light yet. It would be better for it to light up when the battery is low, so your not stuck holding up boards and finally getting in position to use the drill to find out that the battery is dead.
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Showing 1-10 of 10 posts in this discussion
Initial post: Dec 6, 2011 9:37:59 AM PST
it is also frustrating when you get a screw half way drilled and the battery conks. Maybe it's better if it doesn't even start the screw in the first place. then again maybe not. just thinking out loud.
Posted on Mar 17, 2012 6:50:10 AM PDT
I very much appreciate that you included both pro's and con's for this product. It is easy to identify with your perspective of using a cordless power tool. I usually avoid cordless tools because I want the tool to be ready to use when I need it and don't need to find out that the battery is dead at the most inconvienent time. Thanks again for your great review.
Posted on Dec 7, 2012 6:38:25 AM PST
Ryan Gallant says:
Not making excuses or anything, this is a Drill, not a drill driver, I believe that an 18v L-Ion drill should have the power to do the job you were trying to do, but it really is the job of an impact driver, or a drill driver.
Posted on Dec 7, 2012 9:31:23 AM PST
I have learned the hard way never to leave the battery in the charger after it shows that it's fully charged.
Having said that, I am using the Ni-Cad and NiMH batteries and the chargers are probably different, but my 18-volt chargers do not shut off after the battery is charged. Ultimately this will ruin the battery.
I do have a new DeWalt 20-volt Max Li-ion impact driver, which I like, but it's too early to tell how long the batteries will last.
My suggestion is to take the battery off the charger as soon as it's done.
Posted on Dec 7, 2012 1:10:13 PM PST
S. Chang says:
For any lithium battery powered tool of this type. it is typical to have full power until it just stop.... rather than slowing down as in regular battery. There is no other way around this.
Never leave the battery in charger for extended period of time after it is charged. It is supposed to go into trickle charging after full charge but this cooks the battery to death if you leave it in for like a week or so.
Number three... you are using the wrong tool for the job you are doing. That is why you are disappointed. You need the impact driver... Dewalt 18V impact driver is super super powerful and can do the job you did in no time at all. You have to master aiming the driver correctly and with just the right amound of trigger pressure.
The impact driver will also reveal the quality of the fasteners you use... if it strip out so fast. It is a poor grade screws. If it slips alot, then you need a new driver bit. One or the other if you have a problem.
In reply to an earlier post on Feb 9, 2013 7:09:51 AM PST
Last edited by the author on Feb 9, 2013 7:11:32 AM PST
You are wrong!
1) Using an impact driver (other than a one-shot hand-held unit) on any "screw" and you will do one of two things:
Break off the head -OR- strip the head.
The impact driver is for hex-head bolts/nuts.
2) Never leave battery in charger....yes you are right in regards to NICAD variants of Dewalttools, but NOT lithium. Lithium charges supply power up to a peak voltage of 4.2v PER CELL, and then stop. If the voltage goes BELOW 4.1V, the charge circuit will kick-in (at a low current) to top it back off and then stop at 4.2V/cell (each cell has its own charge-sensor on the batteries.
Legacy Dewalt lipo tools had battery/charge problems....any tool made today that has battery/charge problems sucks in design and should be avoided.
After reading the reviews on the Dewalt site (pros write those, not homeowners who are trying to keep up with the Jone's)....this tool has 2.5 star average rating. Thanks, but no thanks.
Posted on Feb 9, 2013 8:10:13 AM PST
Actually, this tool is made to drive screws, including those with slotted, Phillips, Torx, square, and other heads.
You are certainly correct that if you hammer on a screw with an impact driver after it has tightened you will break the screw or strip it. This is not the fault of the tool, and it will happen with a regular drill-driver as well, just not as fast as with the impact tool.
I suspect that the breaking screws are the more brittle dry wall screws. They have their place and are generally available for a good price, but usually aren't as tough as a standard wood screw. I still use them myself, but I realize that I'm using cheap screws. One test of different screws done at woodgears (dot) ca found that dry wall screws worked very well. You just have to be careful when driving them.
I hope you're right about the battery chargers. My experience with cooking batteries is with the older NiCad and NiMH and the older DeWalt chargers. It's about time someone designed a charger that won't ruin your batteries if you leave them in for a week or more. For me, I'll continue to remove the batteries as soon as they are charged. I don't want to risk those two new LiIon batteries just to test the idea that the charger won't ruin them.
In reply to an earlier post on Feb 9, 2013 8:56:43 AM PST
Last edited by the author on Feb 9, 2013 9:02:07 AM PST
I said IMPACT driver/drill, NOT HAMMER drill.
VERY big difference.
The post I responded to was S-Chang comparing this drill to an IMPACT driver.
I too remove my batteries from the charger. Its a habbit I got into when I owned NICAD/NIMH tools. Fortunation Lithium holds charge many times longer than the nickle-chemistries. I always hated it when I'd pull out one of my cordless tools I had not touched in months only to find it dead. At least I could charge it back up, because it does not damage them.
With Lithium if the battery gets run down to zero-volts it is toast.
Posted on Feb 9, 2013 9:38:14 PM PST
Sorry. You are right. I recently bought both this HAMMER drill/driver and the DeWalt new brushless IMPACT driver. I got the tools mixed up when I responded to your comment.
I still think the IMPACT driver (not this tool) is fine for all kinds of screws, better, in fact, than this hammer drill. I've been using drill/drivers for years and only bought this set to get a bargain on the two batteries which cost about $100 for a pair. Buying this on sale got me the drill, charger, and case for only an additional $69.
I use my new impact driver for most screw driving jobs now. It's smaller, much lighter, and usually easier to control. It's a great tool, but it was expensive.
I'm with you on the Li-Ion batteries. I have had bad luck with the DeWalt Ni-Cads and NiMH batteries, even if I do take them out of the charger when they're finished charging.
I didn't know that a lithium battery is ruined if it is discharged to zero volts. I'll try to ensure that never happens. As S. Chang says the voltage drops rapidly when a lithium battery is discharged. I hope it doesn't get to zero before the tool shuts off.
Posted on Mar 29, 2013 9:35:18 AM PDT
Charles M. Rowe says:
My 18v Dewalt came with 2 batteries and one now will not take a charge or is worthless!!! Have no idea how I can get the new battery replaced except to buy a new one for $49.00. this problem has made Dewalt a bad brand for me to buy ever again.........
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