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Dewalt 4.5" grinder, has anyone ever put a drill chuck on one?

KTMrider

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My wife came home from a mushroom growing seminar and they used a 4.5 inch grinder with a drill chuck on it to drill holes in logs at a fast pace using a 7/16" bit with a depth stop. Has anyone ever mounted a drill chuck on an angle grinder before? Can you recommend a brand that will fit the Dewalt 4.5 inch grinder.
 
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KTMrider

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ja3a3a7e.jpg
 

Mohawk Dave

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this seems incredulous. and incredibly dangerous. Why not just go for the gusto and use a .50 BMG...

that said, I want one. Is there a picture of the actual bit? I clicked on link but did not see it...
 
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KTMrider

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Yep, I have a video of it in use. The wood logs are quite soft and fresh cut so plenty of moisture to cool the bit. From the video my wife took it looks fairly harmless. Super fast split second hole drilling with a stop set at 1-1/2" deep at 10K RPMs. About 50-60 holes per log,
 

southalabama

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I've done several batches of shiitake logs. I used a corded drill. It worked fine. I can't imagine that a grinder would speed up the process that much.

Having said that I do know a guy who has one he bought from the forestry supply catalog.

I use a 1/2" dewalt drill and the torq will break you wrist if you don't have a firm grip.

Once you Innoculate a bunch of logs it will be many months. I'd use this as an opportunity to add a drill to my tool collection rather than buy a specialty tool you won't use often.
 

ADSR

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Oooohhh. Mushrooms take me back man. So many colors lol
 

Bobcat753

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Oh god I could only imagine the types of mushrooms ingested when they came up with using an angle grinder! A grinder is meant for cutting and grinding not drilling holes. Get an angle drill instead.
 
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cnc-me

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You better keep that bit moving, I can see a "cooked" bit if you dwell for
to long at 10K rpm. Router bits turn even faster, and people plunge cut
with those all the time. So I don't see any problems with the concept
only in how it's executed.
 

strutaeng

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I think that as long as that adapter was engineered for that speed it is okay.

I read on OSHA that a guy was killed when he was using a rosette cutter on a router and one of the cutters broke lose and struck him in the chest. They further stated that the man was a 20+ year old woodworking veteran.

The centrifugal force generated at 10k+ rpm is insane. I too would use a drill, but I'm always leaning on the side of safety.

Good Luck
 

Regnar

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So I had to see a video of it in action because I didnt think it would be that much quicker and boy was a wrong. I have to agree that if everything is rated for the speed have some fun with the new toy.

 
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KTMrider

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Figure 100-200 logs x 50 holes per log, this will blow away standard drilling speed.
 

ADSR

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So I had to see a video of it in action because I didnt think it would be that much quicker and boy was a wrong. I have to agree that if everything is rated for the speed have some fun with the new toy.


Holy ****! That is pretty quick.:rocker:
 

zkling

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People always willing to piss on things when they don't know, especially if it seems a bit different.

KTMrider, I'd recommend you just buy her the specific coupling and bit. It is not a standard twist drill bit and the common jacobs style chuck will vibrate more than a one piece adapter. I've even seen people use special drill bits in pneumatic die grinders for a specific application.
 
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