when i used to do renovations i'd use diamond core bits on an angle grinder to cut out holes for faucets in countertops. don't do that anymore, but one of my honey-do items is drilling 1/4 in hole in some plates for the wife's cookie trays.

anyway, does anyone know if there is an adapter that's a female 5/8 thread on one end to a female 1/4 hex on the other? have some small diamond drill bits that should do the drilling but would rather use my grinders 13000 rpm to my drills 6000.

alternately, is this a stupid idea that should never be spoken of again?

Hello, I am looking to buy an angle grinder to attach a bit on for mushroom cultivation on logs. I am looking for something cordless and I like to BIFL. I don't know tools well enough on my own. Historically, Id rather have too much power, than not enough. I will be drilling 2" holes every 6 in along 6" dia hardwood.

I would like to be able to use it for other things as well, just definitely need it for this project.

I was going to link the ones I was thinking of. Feel free to advise, discourage, warn, all tips are appreciated. I have a couple Stihl saws for the cutting. Good there.

This one says "tool only" not sure why?

Normally, I would buy the brand Bosch for quality, but i don't want to spend that much.

This is another brand I recognize, here yet seeking advice.

What's my best tool for the job/mid range price? I want a good performing reliable tool. Is it worthwhile to spend more for any reason?

Thanks soooo much for your help. I want to make an informed purchase. Thanks again.

I was at Ace Hardware trying to get attachments for my drill so I could do some minimal 'rotary tool stuff' (my dremel died), anyways it seemed the only way to get attachments on was by getting this 'arbor adaptor', they had two models and both were 1/2" (not the shank, the threaded shaft that holds things like grind discs or wire-wheel discs), yet they didn't have a single grinding disc with a 1/2" hole....5/8" was the closest and they had a ton of those, the salesman convinced me that was normal and those were for the arbor - I'm now home setting-up and it just feels very wrong putting a 5/8" center-hole grind disc on a 1/2" rod, I mean I'm trying to center it but no matter how much I try to it's going to be off-center!

Is it common practice to use 5/8" holed discs on 1/2" arbors? Why weren't 1/2" holed grind discs available? Am so confused right now, feel like I had to have gotten the wrong disc and/or arbor but both were the 'best' options there (and what the guy said was right) Hoping for 2nd opinions before I actually use this thing!