Podręcznik zastosowań Dewalt Dcf897

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This is an industrial tool. The lug test is exactly what it should pass with flying colors. I have the m18 3/4 and it often fails to remove bus lugs applied at 500ftlb. I end up having to find air, if available. Maybe they can adapt the 60v setup with a heavier anvil. The first company to market with a cordless to truly rival a 3/4 air impact is gonna just rule the professional market. I'll be the first in line!

I bought this dewalt brushless 1/2 impact, and let me tell you, it is very strong. I use mine to loosen up bolts in the refinerys. I am a boilermaker and it can loosen up the bolts up to the 1 5/8. One time i had to open up a man way and the size of the nut was 2 inch. I decided to put the adapter from 1/2 to 3/4 and installed the 2 inch socket. The bolts and nuts were stainless steel. Well i was able to remove 3 nuts after a good 20 seconds to 30 second battle on each one. I decided not to force the impact , but it proved to me that this impact had some serious power. I still use it at work, and i recommend to use the 6.0 amp batterys. Thats what i been using for a good 12 hrs shift. I use 2 batterys. I hope this commend helps out the boilermakers out there. Thanks and god bless

Great

Thanks! you removed the mystery regarding same torque specs between the 1/2 & 3/4. You saved me from potentially making a purchasing error. Bottom line, the 3/4 modle is not enough torque for my need. Will still need to use air. But the 1/2 sure looks convenient!

Great vid, in this case it would seem they just made the anvil in a different size change one part and you have a new tool. I have seen this else ware the auto industry.

The square drive has a larger circumference and more surface area so the torque is greater and passed thru the socket I have both 1/2 and 3/4

I have the 1/2 and 3/4.  Despite the specs, I can say for sure the 3/4" drive will remove nuts the 1/2" fails to remove.  I was not using an adapter. I attribute this to the 3/4" socket and anvil being more solid and therefore transmitting more torque.    The test was a dozen 2" nuts that had 840ftlbs of torque on them, these were lubricated, clean rust free threads. The 1/2" would not move any of them, the 3/4" removed all of them.    IMO buy both.   They both have there place.  However these have been out a while now, Milwaukee has some new stuff out that really has me thinking about switching brands, if only I wasn't so heavily vested in Dewalt.             DEWALT: We need a 1" drive 60v 2000ftlb both directions monster.

Do it's best to just go with the 3/4" Impact wrench?

So if it wouldn't break the lug nuts on the semi-truck loose and they're only supposed to be at 450ft-lbs, and the tool supposedly has a 1200ft-lb break away torque, what does the break away torque do if the max torque of the tool is only 700ft-lbs? How do they come up with 1200ft-lb break away torque? What is the difference between max torque and break away torque and how does the tool that only produces 700ft-lbs somehow give 1200ft-lbs? Could you guys come up with a video to show how that works, how the tool does it? Thanks.

If anyone knows I'd like to ask why the 1/2 says it weighs 5.8 Lbs and the 3/4 says it weighs 7.2 Lbs, that is from the DeWalt site. I ask because no one seems to mention this and the specs otherwise are identical.

I'm disappointed DeWalt still hasn't upped their game yet as of August 2018 & matched or bettered the Milwaukee 3/4" dr impact rated @ 1500ft lbs of nut busting torque/1200ft lbs tightening torque. I'm invested into the DeWalt 20V battery line-up so I don't want to buy the Milwaukee. Come on DeWalt get yo shit together man!

Kind of pricey, but if your giving them away , I'll take one !

Great topic I do have a question. I'm going to purchase 1/2 inch or 3/4 inch Drive. I understand they're basically the same tool except for the Anvil is different. I've heard several people complain the half-inch drive and the brakes. I'm a little concerned of that versus the 3/4 in Annville. If I had to buy one or the other would you recommend the 3/4 in and just purchase an extra set of sockets?

I want it!!!!! Nice video!!!!

I have the 899 1/2 inch model. My boss put me on a Kenworth brake job . I put my recently acquired 8ah battery on my gun. It removed the lugs on the big Kenworth . I can’t explain it , but the gun just has more raw power with the 8ah over the 5ah battery.

You guys say that both of these tools are the exact same build except for the half inch versus 3/4 in anvils. Correct me if I'm wrong but I've heard a lot of complaints of the 1/2 in anvils snapping?

I know this is old but do you think 897 will except 899 1/2" anvil and head so I dont have to use a reducer. Have a 897 but I only have 1/2 sockets.

I am going with the 3/4 due to the fact that i keep snapping the 1/2 anvils.

Does this model 897 is the same device with 899hp2 motor?

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