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DW 735 knives

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Forum topic by jbmaine posted 12-05-2019 05:04 PM 778 views 0 times favorited 21 replies Add to Favorites Watch
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jbmaine

91 posts in 78 days


12-05-2019 05:04 PM

So, as some of you know, I ordered a DW735 planer on black friday. Picked it up last night. Ran about 20 bf. of clear southern yellow pine thru it this A.M. Brought the pine down to 1/2” from 3/4’. Planer ran great. However!, about half way thru the knives got a ding in them and now the boards have a ridge. This wood was clear! , no knots, bark, dirt. I had heard many times the stock knives for these planers were not the best, but, I am somewhat surprised just how bad they really are. I’m thinking a call to Dewalt may be in order. Without breaking the bank, are there aftermarket knives for these planers anyone would recommend?. And yes I know shelix heads are the upgrade for these planers, but out of my budget for some time. Thanks


21 replies so far

View Gene Howe's profile

Gene Howe

12002 posts in 4037 days


#1 posted 12-05-2019 05:21 PM

For a temporary fix, you can shift the nicked blade to one side or the other.
You are right. Those OEM blades ain’t the best. I’ve not tried any of the after market blades but, they gotta be better. I
After going through several sets of the OEMs, I bit the bullet and got the Shelix. I figure it’ll pay for itself within 3 years.
They’re sure nice.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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BobAnderton

309 posts in 3399 days


#2 posted 12-05-2019 05:25 PM

Just us talking, if the knives had gotten dull quickly you’d have a case to make about the quality. In this case, the boards have a ridge in them, so all 3 knives got dinged in the same place. That means you hit something that caused it. If I were Dewalt I’d push back on this.

-- Bob Anderton - Austin, TX - Nova 3000 lathe, Alaskan Mark III mill, Husqavarna Saw

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Aj2

2651 posts in 2406 days


#3 posted 12-05-2019 05:30 PM

My suggestion is Infinity carbide tipped knives. That’s what I put my 735 they are great .They also have regular hhs steel knives but I haven’t tried them.
Keep the planer a knife machine like it was designed. And you will be able take generous depth of cut full width in hard woods.

Goo Luck

-- Aj

View AlaskaGuy's profile

AlaskaGuy

5522 posts in 2917 days


#4 posted 12-05-2019 06:02 PM

In my opinion spelled OPINION (AJ) it’s not a big deal. I have had a DW735 for probably 15 years. I also have a Felder 16’’ J/P combo for over 20 years. Both machines have similar knives. It doesn’t take but a grain of sand to put a nick in them. Pieces of sand that are hardly detectable with the naked eye.

That being said, a planer is a dimension machine, not a finishing machine. It’s not intended to put an finished surface ready to go the the finishing room. You still need to sand/scrape etc to prepare the wood to be finished. In that processing the ridges with go away.

If you worry about every little nick you’ll never be happy with it.

-- Alaskan's for Global warming!

View Gene Howe's profile

Gene Howe

12002 posts in 4037 days


#5 posted 12-05-2019 07:05 PM



In my opinion spelled OPINION (AJ) it s not a big deal. I have had a DW735 for probably 15 years. I also have a Felder 16 J/P combo for over 20 years. Both machines have similar knives. It doesn t take but a grain of sand to put a nick in them. Pieces of sand that are hardly detectable with the naked eye.

That being said, a planer is a dimension machine, not a finishing machine. It s not intended to put an finished surface ready to go the the finishing room. You still need to sand/scrape etc to prepare the wood to be finished. In that processing the ridges with go away.

If you worry about every little nick you ll never be happy with it.

- AlaskaGuy


You are right in every respect, Richard. But, those ridges still bug me.

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

View Rayne's profile

Rayne

1298 posts in 2148 days


#6 posted 12-05-2019 07:13 PM

My knives have the same issue. They hit something and got nicked pretty quickly. I do have the shelix head on standby as I wanted to at least use the blades before taking the trouble to install the new head. Anyways, in the past, I bought Powertec blades for my 6” jointer and they worked very well for a long time before getting its first nick and this is going through pine, knots and all. Not sure what the quality is like now, but at least it’s a recommendation to save some money for the time being.
https://www.amazon.com/POWERTEC-Treated-Laminated-Replacement-DW7352-Set/dp/B005NYWNBW/ref=sr_1_2?keywords=powertec+dw735&qid=1575572971&sr=8-2#customerReviews

View controlfreak's profile

controlfreak

411 posts in 210 days


#7 posted 12-05-2019 07:29 PM

I have this machine and have an extra set of knives but have never looked at them. Do these knives have two (reversible) edges?

Nicked blade from a grain of sand? I guess running pallet wood through this thing ain’t gonna go well.

View jbmaine's profile

jbmaine

91 posts in 78 days


#8 posted 12-05-2019 07:32 PM

Thanks for the replies everyone. Nicking the knives is something that happens, I know. I also have a DW 733 planer, I’ve run thousands of BF. of lumber thru it in the last 20 years, and I’ve nicked blades plenty of times. Usually you can see the knot or spot on the wood that did it. As I said, it happens, I’m just surprised it happened so fast on dry, clear, soft wood first time out. This is what I was running, really don’t see a reason the knives should have gotten nicked.

View Craftsman on the lake's profile

Craftsman on the lake

3099 posts in 4046 days


#9 posted 12-05-2019 08:08 PM

Do the 735 blades reverse like the 734 ones do? If so they have a new side on them. I’m on my second set (4 sides) of blades after 10 years and thousands of bd ft of lumber, oak, maple mostly. I only change them when the planer starts straining to do the work. I have had a knick or two. It ends up leaving a thin ridge in the wood. It is easily sanded out. I don’t fret it and wait till the blades are dull to change them out.

That being said, It’s annoying and when it happens to new blades; it’s a sinking feeling. I just keep in mind that it’s a minor issue in the long run.

I’ve only used Dewalt blades. I don’t know if others will be better.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

View AlaskaGuy's profile

AlaskaGuy

5522 posts in 2917 days


#10 posted 12-08-2019 02:21 AM



Do the 735 blades reverse like the 734 ones do? If so they have a new side on them. I m on my second set (4 sides) of blades after 10 years and thousands of bd ft of lumber, oak, maple mostly. I only change them when the planer starts straining to do the work. I have had a knick or two. It ends up leaving a thin ridge in the wood. It is easily sanded out. I don t fret it and wait till the blades are dull to change them out.

That being said, It s annoying and when it happens to new blades; it s a sinking feeling. I just keep in mind that it s a minor issue in the long run.

I ve only used Dewalt blades. I don t know if others will be better.

- Craftsman on the lake


Yes, two cutting edges

-- Alaskan's for Global warming!

View YouthfullMind's profile

YouthfullMind

61 posts in 760 days


#11 posted 12-08-2019 02:05 PM

I had the same problem with my 734. In the long run you will save a lot of money by getting a shelix. This probably depends on what type of wood you typically use. I can say that I went through numerous sets of straight knives in a short period of time while milling some white oak. I was getting frustrated by buying $50 sets of knives frequently which prompted my purchase of the shelix. Since getting it I have went through a ton of white oak and haven’t had to rotate the blades on the shelix yet. I was so satisfied that I purchased shelix for the jointer too.

View Heyoka's profile

Heyoka

33 posts in 461 days


#12 posted 12-08-2019 02:24 PM

+++ on a shelix cutter head!

-- Heyoka

View jbmaine's profile

jbmaine

91 posts in 78 days


#13 posted 12-08-2019 02:48 PM

Shelix head is on my list of things to get, sounds well worth it. Right at the moment though, my tool funds are depressingly empty.

View sawdustjunkie's profile

sawdustjunkie

408 posts in 2325 days


#14 posted 12-08-2019 04:10 PM

Just my opinion, but spending as much on a Shelix head as what the planer cost’s seems overkill to me.
I am sure they work quite well, but like others have said the machine is not a finish sander.

-- Steve: Franklin, WI

View Orbit's profile

Orbit

2 posts in 417 days


#15 posted 12-15-2019 09:52 AM

I have this machine.. if you’re using planers you’re going to get Knicks in blades …. I keep five sets of blades, either on the machine, on the shelf or at the sharpeners.. It doesn’t take very long to change the blades.. enjoy your woodworking.
Ps yes the blades are reversable ,but some particularly stubborn knots will crack the blades.on small runs I will leave the damage blades on and simply clean the ridge left with a hand plane…then change or flip blades for next clean run.

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