DIY rocket mass heaters
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Angle grinder Shiitake logs?

 
Lj Jane
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posted 4 years ago
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We cut the logs for our shiitakes this weekend. We have an angle grinder and have read that is the quickest way to drill holes. What exactly do I need to be looking for to refit it for drillling holes? I have Lowe's locally and that is about it as far as buying in store. I just need to know what the parts best set up is.
 
John Suavecito
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posted 4 years ago
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I have to admit I'm intrigued. I own an angle grinder too. I bought it for one job and never thought I'd use it for mushies. I am no help, but await the answer with baited breath.
John S
PDX OR
 
Craig Dobbson
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posted 4 years ago
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Skip to the 2 and a half minute mark to get to the grinder vs drill comparison



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Peter Ellis
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posted 4 years ago
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You are looking for an adapter for your angle grinder. Basically, it is a drill chuck that mounts onto an angle grinder. Put that on the grinder, put the appropriate size bit in the chuck, and away you go. Just be careful, that bit will be going Very Fast!
 
Lj Jane
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posted 4 years ago
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Thank you all. This answered my questions. The mushroom supplies websites were calling the chuck and "adapter" and not a chuck which was where I was confused in my search
 
Joseph Lofthouse
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posted 4 years ago
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In the video, the drill bits are different between the two tools. Put that bit from the angle grinder into the drill and I bet that it would drill holes much faster in the wood. Spade bits or spur-point bits work better for drilling crude holes in wood than a general purpose twist bit (as was being used with the drill in the video). Also the battery was almost dead on the drill, and the angle grinder was powered via AC power.

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R Scott
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posted 4 years ago
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A drill bit will explode if run in an angle grinder, it is too brittle.

The speed difference may have been exaggerated in the video, but it is real. Not sure how many logs you need to do to make the angle grinder worth the money.

The angle grinder bit also has a shoulder to trim the bark so it is easier to plug and seal, so it saves you more time there, too.

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Peter Ellis
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posted 4 years ago
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Whether the video was a fair test or not, the appropriate adapter and bit on the angle grinder is significantly faster than a regular drill, corded and using the same bit. And angle grinders can be had for very low cost.
 
Phillip Swartz
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posted 4 years ago
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The angle grinder attachment is definitely an easy way to speed up drilling but you may need to consider where else the project may bottleneck. You may find that you need an extra person filling and/or waxing.

Willing to find out what 'impossible' means.

 
Lj Jane
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posted 4 years ago
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Just wanted to update what we ended up using for our project. Instead of messing any further with making the angle grinder work we bought a hammer drill. After piecing the parts together to make the angle grinder work the hammer drill was a better deal. It was only $10 more than the assorted pieces it would have taken to make our angle grinder work. We consider it an investment since we will be returning to this project over the years.
 
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