DeWalt 254mm DWE7491-XE Questions & Answers

Normal 10a plug.

Thanks, Dave

I also have an Amazon purchased Freud blade but I paid extra care to the arbor size and ended up with one that fitted correctly. I was fortunate to have seen comments online that mentioned issues, so I was super-careful to get the right one.

Maybe it will fit your mitre saw? ;)

It's a non issue. The flange and nut hold the blade firmly. A 30mm blade hole can be shimmed down to 16mm (15.875mm) and works as before.

Sunil, the blade is for wood but it can cut aluminium or melamine covered wood. 80 teeth will give an ultra smooth cross cut for those special projects. For ripping (cutting with the grain) 40 teeth is enough and not too bad with crosscut (against the grain) too. 40 teeth blades are classed as general purpose and usually cheaper than blades with more teeth (it figures as there is less carbide/tungsten/hard expensive material present with a lower teeth count.

It's 5/8. Yank saw don't forget ;)

5/8 is 15.875mm

Hi Brian, my saw motor has a very small amount of play in its mount, but I think this may be some flexing somewhere rather than something loose or ill-fitting. Certainly wouldn't be 2mm worth.

I seem to have about 1mm lateral play with the motor. It's at the back end of the blade but not the front. How does the blade come off the arbor? Was it the arbor nut coming loose? If I neglect to tighten my arbor nut once in a while, the blade can come loose. First sign is a little bit of blade wobble, followed by the blade spinning on the arbor instead of stopping when the motor is shut off. I haven't had the arbor nut or blade come all the way off.

Give the arbor nut a quick tighten after every few hours of use.

Hi Jim, that'd be 10 amp.

Thanks Dave.

10A. It doesn't have the wide blade plug.

Yes, you must always check the arbor size when purchasing circular saw blades. They vary across brands. Most woodworking supply shops and tool shops in Australia, and online sites, sell reducing bushes to adapt from say a 30mm hole to a smaller hole. Some blades come with bushes in the pack. Of course if the blade has a smaller hole than the arbor you can't fix that! Preferably buy a blade with the exact arbor size. Bushes not suitable for Dado stacks.

very surprised that people have issues with finding blades with the right bore size ... try Freud from Timbecon or elsewhere (eg: amazon). They're excellent blades and their range is comprehensive ...

In relation to the motor I have noticed that with mine at all. At the end of the day if it becomes a bigger issue or affects performance in anyway you always have the warranty to go back on. In relation to the table top based on my research the table too is plastic but I can’t confirm this as there may be different models in different countries.

Never seen sparks or had burning smell that I can recall. Even with a heavy dado set. Not sure where you would see it unless looking under the table at motor housing when sawing? The top is pressed steel which is powder coated. If making your own saw table or mitre devices which slide in the tracks, consider buying metal slide rails which incorporate adjustable plastic side screws to get the perfect fit in the tracks.

Thanks Stevo. Yes the spark is coming out from the motor. As the motor is running, I look down at the motor side, and its sparking, agent said (toolmart) its normal, its the brush from the motor that is sparking. A few of FB comented is normal. I also send an email to Dewalt, but not even sure they will response to my email. LOL.

Hmmm, can't remember where i read, the top is cast, but not sure what material.

Well, it's loud as the motor and saw is not fully encased as a large expensive table saw might be. But it is designed for use on a work site. I doubt it is much different to any compact contractor style saw. You will of course have to wear ear muffs. I guess I could say 'show me a saw which is quiet'.

It's a very good bench saw but it does make a lot of noise. I have it set up near the kitchen in what was a breakfast nook at the rear of the house! My wife wears ear muffs if she is nearby when I'm sawing. I've asked my neighbours if they hear the saw and to my surprise they say they don't. I only use the saw during the day. One can hear the saw from outside the house but the sound is muffled. I suppose it depends how close your neighbours are to your garage as to what they will hear. I agree with Stevo that saws (especially worksite type saws) are noisy machines.

Thanks for the feedback, I think I’ll go for it as it ticks all the boxes.

Hi Dan, I use the Dewalt DW7670 8" dado blade set and the DWE7402DI throat plate on my DE7491-XE. The opening in the throat plate limits the dado set to a maximum 13/16" (20.6mm) wide cut. The dado set and throat plate have worked well for me. I'm not familiar with the DW7466 throat plate.

Yes, I have been able to use a dado set up to at least 12mm thick (limited by the length of the spindle). It is not a DeWalt set but one bought at a woodworking supplier (Timbecon). The limiting factor is the length of the spindle and I think you will find 20mm a little too wide to fit, allowing for the locking nut. Yes 8 inch blades are fine in the 10 inch saw and in fact preferred as they have less mass and momentum for the motor to start and stop, and you won't be doing deep through cuts with a dado. I also have a 6mm flat top 10" which is fine for simple grooves such as for drawer bases. Just ensure any blades you purchase have the correct arbor size 16mm. I wouldn't try to use 30mm-16mm adapter bush for dado sets (but have with normal blades). I made my own throat plate from ply but you can buy blanks from stores such as Timbecon or Carabatec. You wind your blade up into the blank to get the desired width of hole. You can also do this to create a minimum clearance insert if you are doing fine thickness cuts.

Pretty much the same size. 491 is a slightly better machine.

Hi Barry, I haven’t had that experience at all, so I can’t really respond to this complaint other than to thank you for this heads-up. I don’t know what you consider “heavy duty” but I have ripped and cross cut hundreds of metres of hardwoods like ironbark and Jarrah slabs/sleepers 75mm thick on this table, and only had to replace the blades and the push stick. Which were always going to end up as consumables, one way or another.

Having said that, this is less of a question and more of a warning. So I will try to be helpful here.

Feel free to add your own review so the statistics consider your experiences. Please do not use the question system if you aren’t actually asking a question. I understand that you are upset, but this isn’t the best way to go.

By the way, from my friends in the tool repair business, they mentioned that Bosch has a lower returns rate than DeWalt. Maybe that will help if you are considering a replacement.

Good luck! Hamish

I don't have a dado blade. I use my router jig for that so I don't have to keep changing blades, unless you are doing a LOT of dado trenches all at once, doing what is necessary for getting dado's to work (relatively) accurately isn't always fun!

Dewalt says that you can theoretically put one on, but I'm not sure if this covers the differences between the US, European and Australian models. If it is possible, (The US version is said to be compatible) the throat plate will need to be replaced with one suitable for a dado blade. (Sold separately of course).

From memory, the 7491 has a 5/8 inch (approximately 16mm) arbour (please check that) on some of the forums it's mentioned that the metric/imperial blades are similar enough to be interchangeable. I just stick with the imperial because they match the supplied blade that came with the saw. If you don't have the right blade, you could try adapting it via some bushing/reducer but it is not recommended for dados... especially when working with hard woods).

As for width... I'm sure you know this, but please for your own safety, ensure there's enough thread left to securely attach the blade to the shaft. I've seen some interesting adaptations of dados over the years... and some have come somewhat loose at the worst possible time.

I'm sorry, I'm not much help. Good luck though!

Hamish

Yes you can. Dewalt sells their own dado kit as well.