cleaning up some mushrooms

[J_P]

Decided it was time to clean up some mushrooms on the ends of a couple of prybars. I was going to simply grind them down but then I thought why not use my new portable bandsaw and take advantage of the new stand I made and just cut them off.

http://www.homemadetools.net/homemad...andsaw-stand-7

This is a photo of the first mushroom cap cut off



The bottom side of the cut



Then I went after the second mushroom cap and cut it off



The bottom side of the cut ,,,,YIKES!



That crack was a big mess so I took off another slice which just broke apart during the cut



I wanted to get to the bottom of this so I took off another slice



...and another



..and one more to be sure



Finally, no more cracks. But it was an interesting lesson and I'm glad I decided to cut off the caps instead of grinding them down.

Here's a summary comparison

[Toolmaker51]

That is quite revealing. It wouldn't surprise a metallurgist, but few of us think of fatigue at a microscopic level - let alone visually. Grinding or sanding definitely hides many irregularities; samples are lapped and polished before examination.