Does size matter?

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At least when it comes to grinders...it's actually a bit of an interesting result:I know it's not Tuesday, so technically not a Tool Test Tuesday video, but this is one I've wanted to do (and have been promising) for a while as I've never seen anyone comparing such different grinders against each other. Not exactly the results I expected, somewhat, but power has a bigger impact than wheel size from what I saw. The DWE4597 7" grinder is an absolute beast

Though, funny, the littlest/slowest grinder in this test is the one I use the most...reason being? It's easier to control and get a nice clean grind with.I will say, the DWE4597 7" grinder is an absolute beast


Reply:For my large grinder I use a Milwaukee 7/9". I use it when I have to dig deep or when I'm tired. Mainly because it will cut with its own weight without much input from me.Lincoln 330MPXLincoln Power Mig 256Lincoln LN-25X Wire FeederMagnum PRO 250LX GT Spool GunLincoln AC/DC 225¼ Ton of Torches OFC-A OFG-AAir Carbon Arc Gouging CAC-AEverlast 62i Plasma CutterIngersoll Rand T-30 14hpInstagram: #Freebird Welds
Reply:Good test, but the one variable not controlled is the most important one:  the human error.  Had you eliminated yourself from the equation and used a jig to hold the grinder and apply the same exact pressure each time, the results would have been replicable and more accurate.  Just saying.  

Myself I prefer my 3M 1.5HP air grinders.

  For me personally, rotational speed is key.  At 90-95 psi through a ½" air hose, those 12,000+ RPMs sure do a lot of damage!


Last edited by Oscar; 4 Hours Ago at 11:21 PM.

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Reply:

Originally Posted by Freebirdwelds

For my large grinder I use a Milwaukee 7/9". I use it when I have to dig deep or when I'm tired. Mainly because it will cut with its own weight without much input from me.
Reply:Get a Metabo/Walter and a Fein in the mix if you want the absolute best grinder. The Metabo and Walter's (made by Metabo but some have exclusive features) have a slip clutch so you can't really hurt them. Not sure if Feins have a slip clutch but they are very good grinders. It depends a lot on what kind of abuse you're going to encounter.Last edited by Welder Dave; 4 Hours Ago at 10:57 PM.
Reply:

Originally Posted by Welder Dave

Get a Metabo/Walter and a Fein in the mix if you want the absolute best grinder. The Metabo and Walter's (made by Metabo but some have exclusive features) have a slip clutch so you can't really hurt them. Not sure if Feins have a slip clutch but they are very good grinders. It depends a lot on what kind of abuse you're going to encounter.
Reply:My 7/9" corded must be an older version of yours... it's a D28494. Is yours a 15 amp? They are a handful, but I found when I was making the horns on my railroad anvils, I could work faster with the 4.5's (corded) than I could with the 8" bench grinder belt drive Blanchard which also surprised me.The harder you fall, the higher you bounce...250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLes
Reply:

Originally Posted by Lis2323

Same.  Makita 7/9”, but same. Sent from my iPad using Tapatalk
Reply:The next grinders I buy are probably all going to be Bosch. I bought a Bosch 4-1/2" grinder 6 or 7 years ago and it absolutely rocks. I can't stall it and you don't really feel any vibration when you're running it (near zero). I've pulled the guard off and put a 7" wheel on it a few times in a pinch. Plenty of torque for a 7" wheel. I think it's drawing 10 or 12 amps. I've never put an amp clamp on it.Sent from my Lincoln Buzzbox using Tapatalk
Reply:

Originally Posted by Oscar

Good test, but the one variable not controlled is the most important one:  the human error.  Had you eliminated yourself from the equation and used a jig to hold the grinder and apply the same exact pressure each time, the results would have been replicable and more accurate.  Just saying.  


Reply:Yes to big is hard to handle.To small takes to long.I found 4 to 7" is about right size for me.Dave

Originally Posted by #1SomeGuy

At least when it comes to grinders...it's actually a bit of an interesting result:I know it's not Tuesday, so technically not a Tool Test Tuesday video, but this is one I've wanted to do (and have been promising) for a while as I've never seen anyone comparing such different grinders against each other. Not exactly the results I expected, somewhat, but power has a bigger impact than wheel size from what I saw. The DWE4597 7" grinder is an absolute beast

Though, funny, the littlest/slowest grinder in this test is the one I use the most...reason being? It's easier to control and get a nice clean grind with.I will say, the DWE4597 7" grinder is an absolute beast


Reply:

Originally Posted by Freebirdwelds

That 7/9 is the only grinder I will not take the guard off of. lol


Reply:I had a 9" B & D and it will eat everything , finely it ran away never to be replaced.  Dave

Originally Posted by Freebirdwelds

That 7/9 is the only grinder I will not take the guard off of. lol


Reply:

Originally Posted by smithdoor

I had a 9" B & D and it will eat everything , finely it ran away never to be replaced.  Dave
Reply:They are power house and need someone over weight to use the 9" at time I weighed 170 poundsToday I use a 4½ Dewalt. Dave

Originally Posted by whtbaron

Yea.... if that's the old silver metal one, that's the size I'm talking about...


Reply:

Originally Posted by smithdoor

I had a 9" B & D and it will eat everything , finely it ran away never to be replaced.  Dave
Reply:

Originally Posted by whtbaron

Yea.... if that's the old silver metal one, that's the size I'm talking about...