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Blades for a DeWALT DWE7485 table saw.

H

Haker

Seedling
Joined
Apr 21, 2025
Messages
21
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2
Name
Harry Karanassos
LOCATION
Thundersley, Benfleet, Essex, SS7 3RL
I own a DeWALT DWE7485 table saw that came with a DT20432-QZ blade. This is a 24 tooth blade with a diameter of 210mm and a bore of 30mm. The kerf is a nominal 2.4mm and the thickness of the riving knife is2.2mm.

DeWALT recommend only one other blade for this table saw, the DT20433 which has 40 teeth for a finer finish.

Both of these blades are ATB blades. I am looking to get a flat top blade and in this respect I would very much appreciate any comments by those who have successfully found and used any alternative blades (even other ATB blades).
Thank you in advance for your help.
 
You should have no issue using any of the slightly wider 2.8mm kerf blades, which are more commonly available. I recommend CMT blades, which are of superior quality to those sold by DeWalt and fairly priced.

https://www.scosarg.com/tooling/circular-saw-blades?diameter=3772

What is the reason you want a flat-top blade? They are occasionally used on ripping blades, but it seems most people want them for finger jointing. CMT also produce a range of "grooving" blades with a flat-top grind, you can get them in 180mm diameter, which will be relatively close to your 210mm, and between 2-6mm kerf.

https://www.scosarg.com/cmt-240-grooving-sawblade-d-180-d-30-b-6-z-18
 
Another recommendation for CMT blades.
The last few CMT orders I've used https://www.mobiltecnica.com/en
For me in Europe they are very competitive and there customer service has been excellent.
Confession, I do like the female Italian accent.
 
I used to have a lot of CMT stuff. Decent quality at a reasonable price. But Axminster stopped stocking them and all my collection was stolen. But yes, CMT is very OK.
Flat-Top Grind blades are increasingly difficult to come by, but I got mine from Doug Perry at Cutting Solutions, and I also think that Saxton sell one (though I've never tried it). They are fairly essential if you want to cut box-joints on the tablesaw. Who wants a Wwwwobbly socket-bottom?

S
 
Trevanion said:
You should have no issue using any of the slightly wider 2.8mm kerf blades, which are more commonly available. I recommend CMT blades, which are of superior quality to those sold by DeWalt and fairly priced.

https://www.scosarg.com/tooling/circular-saw-blades?diameter=3772

What is the reason you want a flat-top blade? They are occasionally used on ripping blades, but it seems most people want them for finger jointing. CMT also produce a range of "grooving" blades with a flat-top grind, you can get them in 180mm diameter, which will be relatively close to your 210mm, and between 2-6mm kerf.

https://www.scosarg.com/cmt-240-grooving-sawblade-d-180-d-30-b-6-z-18
Click to expand...
Dear Trevanion,
Many thanks for your response to my enquiry and for your valued suggestions. I shall have a look at the blades of CMT and I shall keep in touch, if that's in order. If I can do anything for you please feel free to drop me a line. You might find my YouTube channel of some interest.
Many thanks and best regards,
Haker
 
Jonathan said:
Another recommendation for CMT blades.
The last few CMT orders I've used https://www.mobiltecnica.com/en
For me in Europe they are very competitive and there customer service has been excellent.
Confession, I do like the female Italian accent.
Click to expand...
Dear Jonathan,
Many thanks for your prompt advice which is really appreciated. It's always nice to get a recommendation from someone who has used a particular blade.
If I can do anything for you please feel free to drop me a line. You might find my YouTube channel of some interest.
Many thanks and best regards,
Haker
 
Steve Maskery said:
I used to have a lot of CMT stuff. Decent quality at a reasonable price. But Axminster stopped stocking them and all my collection was stolen. But yes, CMT is very OK.
Flat-Top Grind blades are increasingly difficult to come by, but I got mine from Doug Perry at Cutting Solutions, and I also think that Saxton sell one (though I've never tried it). They are fairly essential if you want to cut box-joints on the tablesaw. Who wants a Wwwwobbly socket-bottom?

S
Click to expand...
Dear Steve,
Thank you very much for your advice and suggestions. I have watched your channel in YouTube and I like what you present.
If I can do anything for you please feel free to drop me a line. You might find my YouTube channel of some interest.
Many thanks and best regards,
Haker
 
Many thanks to all who replied to my enquiry. I am very grateful for your responses and for the suggested links. I did mention flat top blades because they may produce good results with box/finger joints. If anyone has the time and the inclination to visit my channel you can find all of my
YouTube projects, especially workshop projects, on my site: https://www.youtube.com/@Starman3539. Alternatively, please go to YouTube and in the search box enter: UC8SR6QKruDCjtnfeaOuokYw
Once again many thanks for your help which is appreciated.
Haker
 
Trevanion said:
You should have no issue using any of the slightly wider 2.8mm kerf blades, which are more commonly available. I recommend CMT blades, which are of superior quality to those sold by DeWalt and fairly priced.

https://www.scosarg.com/tooling/circular-saw-blades?diameter=3772

What is the reason you want a flat-top blade? They are occasionally used on ripping blades, but it seems most people want them for finger jointing. CMT also produce a range of "grooving" blades with a flat-top grind, you can get them in 180mm diameter, which will be relatively close to your 210mm, and between 2-6mm kerf.

https://www.scosarg.com/cmt-240-grooving-sawblade-d-180-d-30-b-6-z-18
Click to expand...
Dear Trevanion,
In my earlier reply I did not respond to your question "What is the reason you want a flat-top blade?" I would like a flat top blade to use in the making of box joints. Apologies for not having dealt with your question earlier.
With best regards,
Harry
 
AndyP said:
So did I when I was cutting grooves for splines on mitre joints. I can’t find a web presence for them now and company records seems to show it was dissolved in 2022, shame.
Click to expand...
That is indeed a shame.
IIRC mine is an Atkinson Walker, so you could try contacting them directly to see if they still have a distributor.
As a last resort, you could try taking an old blade to a proper saw doctor and ask him to replace all the tips with new carbides, ground to FTG. It might cost you a bit though. On the upside, it's likely to be a low cooth-count, 24T say, so it's not like you need an 80T blade doing.
I must make sure to take good care of mine. I've been cutting FTG slots today, actually.
 
Steve Maskery said:
That is indeed a shame.
IIRC mine is an Atkinson Walker, so you could try contacting them directly to see if they still have a distributor.
As a last resort, you could try taking an old blade to a proper saw doctor and ask him to replace all the tips with new carbides, ground to FTG. It might cost you a bit though. On the upside, it's likely to be a low cooth-count, 24T say, so it's not like you need an 80T blade doing.
I must make sure to take good care of mine. I've been cutting FTG slots today, actually.
Click to expand...
Dear Steve,
Many thanks for your advice and suggestions which are now in my database (read 'Outlook, Inbox).
With best regards,
Harry
 
Steve Maskery said:
Not Atkinson Walker but...

Saxton Flat Top TCT Circular Saw Blade 250mm x 28T x 30mm Bore + rings fits Bosch Makita etc : Amazon.co.uk: DIY & Tools

Saxton Flat Top TCT Circular Saw Blade 250mm x 28T x 30mm Bore + rings fits Bosch Makita etc : Amazon.co.uk: DIY & Tools
www.amazon.co.uk

S
Click to expand...
Dear Steve,
Dewalt DWE7485 will not accept anything larger than 210mm, but I shall contact Saxton to see if they have anything suitable. Many thanks for your advice and update. You are ahead of me in France.
With best regards,
Harry
 
I made an enquiry with Scott+Sargeant yesterday and I had a reply from them almost immediately. So good to see that they read and respond. I am quoting their reply below just in case this may be of use to any member.
QUOTE:

Re: ScoSarg Website Contact
LC
Louis Charnaud<louis@scosarg.co.uk>
To:You
Thu 24/04/2025 20:47
Hi Harry,
this is the closest we do - but the kerf is 2.8
https://www.scosarg.com/cmt-290-rip-sawblade-d-210-b-2-8-d-30-z-24
With thanks
Louis Charnaud
Email: louis@scosarg.co.uk
Please can you take a moment to leave us a review on Trust Pilot:
https://uk.trustpilot.com/evaluate/scosarg.com
Phone +44 (0) 1403 273000
SCM Spares Available here
Website scosarg.com
Scott+Sargeant Woodworking Machinery Ltd
1 Blatchford Road, Horsham,
West Sussex RH13 5QR ENGLAND

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UNQUOTE:
I hope this is useful.
Harry

 
This is to say a big 'Thank you' to all who responded to my request for information on blade(s) for the DeWALT DWE7485. I did contact Scott+Sargeant and I was very impressed with their comprehensive response. I also emailed CMT, but I have not heard from them as yet.
Best regards,
Harry
 
As I said in my post, you shouldn't have any issue running a 2.8mm blade rather than a 2.4mm blade, it's only 0.2mm on each side of the blade which is an insignificant amount and the motor should hardly notice the extra load during usual cutting.

The general rule of thumb with riving knives is that you want the knife to be smaller than the kerf, but larger than the saw plate, so that it doesn't bind after the cut but helps to prevent timber clamping down on the saw plate. As your riving knife is 2.2mm and the CMT blades have a 1.8mm saw plate, there is no issue with compatibility. In fact, you may find the 2.8mm blades work better than the ones that have come with the saw as they will be slightly more rigid.
 
Dear Trevanion,

Many thanks for your follow-up and for your explanatory notes, which make a lot a sense. All of it is very good for my reference.
With best regards,
Harry
 
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