Here's a good comparison video of a normal grinding disk and the Cubitron disks.
mushrooming wedges
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Just a reminder from a blacksmith to always wear appropriate protection for eyes and body especially using mushroomed tools. Seen and had plenty of times where that metal on the edge shoots off at 100+mph and could easily injure someone.
As others have said, grind it off and smooth out. Bench, angle, file, sandpaper, whatever you want to use.
Not sure I'd recommend a torch on your tools since it will change the steel composition and could make it brittle or soft in the wrong places.
As others have said, grind it off and smooth out. Bench, angle, file, sandpaper, whatever you want to use.
Not sure I'd recommend a torch on your tools since it will change the steel composition and could make it brittle or soft in the wrong places.
![[Hearth.com] mushrooming wedges](https://www.hearth.com/talk/data/attachments/282/282121-f17b69377fd6baf050b728d287e616b8.jpg?hash=aFxjPWJZmw "[Hearth.com] mushrooming wedges")
So, I ordered one, it arrived earlier this week. This morning I tried it out. Man, it grinds 3 times as fast as my "normal" discs. Took me half an hour to take off 4 sides each 1/2" overhang.Looks like I'm late to the party.
Here are the fiber disks we use at work, you can get them in 6" and 5" diameters, and they eat material, normal grinding disks produce grinding dust, these create metals filings. We typically just put them on top of a 1/8" grinding disk, they don't work if you are using the edge of the disk, but if you use the face they remove a lot of material very quickly.
This should fix your wedges in short order.
3M AB27632 Cubitron II Fibre Discs - 982C, Ceramic Grain, 60+, 5" Dia x 7/8" Arbor
AB27632, Designed for carbon steel metalworking applications such as weld grinding, beveling, flame-cut edge . Shop 3M Tools. Free shipping on orders $99+.www.tenaquip.com
I'll be buying more. Thank you for the tip!
When I was a youngster, probably about 5 or 6, my buddy took one to the chest while his dad was using a mushroomed wedge. It was like a bullet and embedded 1-inch away from his heart. Scary stuff...
You're welcome, I've used lots of gimmicky sanding/grinding disks before with less than impressive results, but these are the real deal.
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