Large Angle Grinders: Some are Getting Insane

The DeWALT is currently $144, I mean come on amzn.to/49oGLb2 $289 is their best battery kit: amzn.to/3OYZguw On why disc speed is important: Within X size of disc like 6" here, higher RPM makes for a more abrasive quicker working disc and an easier task for you. Abrasives need speed to be effective. Increasing load on the tool to do the same amount of work at lower RPM is not free in this scenario, it requires effort from you. Even larger grinders like 9" while lower RPM have larger diameter discs so a higher edge speed MPH and are even more effective. RPM during use will always be scored here, it's not the bulk of it's score, but in practical daily use it's a noticeable benefit.

I’m looking into becoming a locksmith. I think one of these is gonna be my best friend.

I would be curious to see how an average 220-240v corded grinder like we get in other countries would compare to these.

I knew the DeWalt would kick ass. I'd been asking for it for a while now. Thanks for delievering. Hardest grinder to stall I've ever used. I got mine at Home Depot over Christmas for $230, with the 9ah. An an amazing deal. P.S., mine is smooth with discs, but not with grinding wheels. I OD grind the wheels, they are rarely balanced. It is much smoother, quieter, and more powerful than the 416. Also in for your rating, factoring infinite batteries, the DeWalt will be much quicker. So if time is your money, it is very good value.

I've used the DCG418. I've always suspected that it would happily grab along something and cut me up if I wasn't careful.

I would love to see you guys testing the old school Black & Decker 7/9” grinder 4075/4076, nicknamed “wildcat”. It’s in my opinion the peak of grinders.

Pretty much all of my tools are Milwaukee except I have a couple of the Dewalt 60v grinders in our shop and for me personally. All of ours have the locking power switch though. We have a few corded metabo grinders but pretty much everyone prefers to use the Dewalt 60v units. They are just flat out beastly. Even the corded 9” Metabo sits collecting dust now. We do repairs on tractor trailer stuff with steel thicknesses up to 3/4” and lots of aluminum repairs as well. Even the most abused Dewalt in our shop by one of my employees still runs like it was new. Dewalt really knocked it out of the park with this unit and I can’t really think of much I’d ever change about it.

I had the Milwaukee grinder but so glad I upgraded to Dewalt last year. Smokes it.

Needed another flexvolt battery and decided to do a kit, since you pretty much get a tool for free. A really good tool. Was in middle of a project where I was using a grinder a lot, I have the base DeWalt grinder and was satisfied with it, given what I use it for. I had no other use for the free tools offered with the flexvolt so I got the grinder. Holy hell!!!! The thing is a freaking beast. Cracks me up with Milwaukee fan boys think that the red tools dominate everything. (I have red as well).

I bought one of the first generation flexvolt grinders, the dcg414 ages ago when they’d released it. When they introduced the second generation and larger packs, i was convinced they’ve got the most powerful grinder on the market. A claimed 17% increase in power over that one. Which is wild because it is not short on power. That first gen grinder is going strong still with GOBS of power and hundreds of hours of use.

The 60v Dewalt grinders are beasts...I have the older 60v model (and two of the 20v) and when I tested it, the only thing that could best it was the GIANT DWE4597 "4.9hp" 7" corded I have. Good to see the newer version is top of the charts :)

I've owned and used the dcg 418 for 4 years on a daily basis and still runs as new, honestly one of the best tools I've ever brought and has made my job so easy as a roofer weather its cutting through granite doing a wall chase for lead flashing, cutting roof tiles and slates it has halved my time and workload and couldn't live without it 👍.

I'd still love to see the M18 Flathead grinder and how it compares to the normal ones. Would even be willing to lend mine to see how it compares.

I recently did all the foundation and slab work for my sister's new house she's building. Our 14in gas cutoff saw took a crap on us so we ended up using my Dewalt 60v grinder to do all our rebar cutting lol. Thing is a beast. I've had it since they released it years ago. Would be cool to see you guys test their 7-9in 60v grinder too.

TTC overall Cliff Notes and Summary so far: If you need to cut stuff, get DeWalt 60V saw and grinder. If you need to fasten and unfasten stuff, get DeWalt DCF921(923) and DCF961 if it still won't turn. If you need to use smaller stuff but still need to do some bigger stuff and you have a breaker bar, get M12 stuff If you have a work crew that needs to fasten and unfasten stuff to rigorously scrutinized torques, get M18 one-key-cyber-e-connecto-tork stuff.

Finally! Been dying to know what that 60v dewalt grinder can do!

We use the Metabo variable low speed corded at work for stainless fab and they blow everything else we’ve used out of the water. No surprise it’s top of the corded chart. Their flathead grinder and pipe polisher is very nice as well. For cordless grinding I use a 36V Hikoki (Metabo HPT) and it’s been awesome. Easy to use one handed, compact and lightweight with the small 2.5Ah battery (I have a few in rotation). If it ever dies I’ll happily buy another. I want to try that Dewalt though!

You never ever disappoint, thank you kindly. I'd love to see a showdown between top of the line 230mm angle grinders from Fein (@2500 watts and Fein appear to have discontinued everything above 150mm), Bosch Professional (@2800 watts and brushless), Metabo (@2600 watts) and Makita (@2800 watts) To my knowledge, the only thing more powerful than those are high frequency grinders at 300 Hz.

How about 7-9” grinders? Great episode!

At my age, I value the low vibration and all around less fatigue a lot more than I used to.