![]() Definitely going to rebuild this when i can get another ESC. ![]() It was the ESC (the electronics in the white caulking behind the trigger). Don't make that mistake and you'll be amazed with this drill. But you buy such a heavy duty drill, think it can handle anything, and find this out, you'll be upset like myself. So this isn't just a Dewalt Achilles heel. ![]() This is actually what you're supposed to do with any lithium ion/ lithium polymer batteries and Nickle Cadmium batteries. So, learn to not run batteries below 2 bars (gets to one bar, charge it) and the drill will take as much abuse as you can throw at it. And not at the skinny part of the shaft that was on the chuck. Driving #4 Phillips screws 3-5in long, i needed length and stepped ther bit holder from 5/16in to 1/4in and snapped the 1/4in shaft. The amount of torque this drill has in 1st will snap three 1/4in shaft on a nut driver. I STRONG discourage anyone from using the drill bit setting in 1st gear without the side handle. You will have to come back with the impact to touch up some of the screws but driving 8in SDS screws in 3rd gear then coming back with the 1/4in impact for a few that are between 1/8in-2in out vs burning up an impact or slowly throttling a corded drill, it's amazing and 3-4 times faster that corded or an impact.Īnother plus is the sheer torque this puts out. Driving regular screws, you can dial in the clutch to stop at the correct time. I'm used to mechanical clutches from older drills that make the ratchet noise when they reach the torque spec of the torque setting. The electronic "clutch" is AMAZING!!! the main reason this drill scored so high with me. Avoid the Achilles heel and it's an amazing drill. To avoid killing your drill under high load, stop using the batteries as soon as they get to one bar. He ran the first battery dead, ran the second battery dead, and the drill was dead after the second battery. But, i lent it to a coworker to do the same. I ran this drill for days driving 5-8in SDS, extreme abuse like this, and it ran perfect. How do you avoid this? If you're running high load (ie 8in SDS screws in 3rd gear), the drill handles it fine (why i rate it so highly) BUT!!! As soon as the battery goes to 1 bar, grab the battery on the charger, cool the discharged battery with a vacuum or blower (it will be too hot to start charging) for about 20sec right at the terminals, place discharged battery on charger, continue working with the fully charged battery as the used one charges. The motor takes the abuse perfectly and wasn't even hot on disassembly. There's no thermal or over-current protection. You can do one or the other (it's never suggested to run lithium ion dead) but not both it'll cook your drill. NEVER EVER EVER run the drill at high load AND run the batteries dead. ![]() I'll talk about that first so you don't do it. The missing star is because it's Achilles heel. Keep in mind i don't like this drill and I'm rating it 4 stars of 5. These two great tools come in a DeWalt T Stak case which enables you to stack other DeWalt cases on top of it for storage and ease of transporting.Starting with the bad. A quick efficient bit release makes it easy to change bits. It does up to 3000 impacts per minute and has a variable speed of 0-2600rpm which enables greater control. It too features a reverse for backing out fastenings and an LED light for lighting up those darker areas like cupboards etc. The impact driver (DCF787) is certainly the fast efficient way to go for fast efficient driving of fastenings. The brushless feature also extends the life of the tool quite significantly by reducing the wear on the armature. Its new upgraded brushless motor allows you to get around 50% more run time out of the tool compared it’s equivalent in a brushed model. The Hammer feature enables it to do up to 29,750 blows per minute which is really handy for doing fast efficient masonry drilling. LED light is another handy feature especially when working in darker areas such as cupboards. A larger capacity upgraded 13mm keyless chuck enables you to use larger shank drill bits. Fifteen torque settings is another handy feature helping prevent you over running your fastenings. Reverse feature is also very handy for backing out fastenings or jammed drill bits. – variable and two speeds 0-500 and 0 to 1750 rpm ideal for selecting the right speed for your job. The hammer drill (DCD778-XE) has many great features like ![]() One tool to drill the holes and the other to drive the fastener in! DeWalt 18v Cordless Brushless Hammer Drill and Impact Driver ![]()
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