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This is a badge bit (BB) that is part of the PEP curriculum.  Completing this BB is part of getting the wood badge in tool care.

For this BB, you will sharpen two chisels with a flat edge.

Sharpening a Dull Chisel - Ask Matt #8



Video description:
"A dull chisel is something that is hard to come by in my shop. So when I was asked to show how I would sharpen a dull chisel, I had to get creative with my dulling process."


To get certified for this BB, post photos or a two minute video of:

 - close up of two dull flat edge chisels
 - mid-process with all sharpening equipment used for each flat edge chisel
 - close up of each of the edge of each sharpened flat edge chisel
COMMENTS:
 
pollinator
Posts: 203
Location: KY - Zone 6b (near border of 6a), Heat Zone 7, Urban habitat
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Approved BB submission
This was harder for me than I thought it would be. I grabbed two abused chisels from a thrift store. I don't have the expensive stones in some of the videos but a shop I'm currently working at had a bench grinder so I watched all the chisel sharpening videos, I went with the one featuring a bench grinder. I finished the sharpening on board mounted 600 grit emery paper.

The one in the video seems much nicer with respect to the stages you can use to balance and guide to the grinding surfaces. I sharpened a thin chisel with a blade thinner than the grinding wheel and one that was thicker. While I didn't fine either easy, I learned a lot for next time. The thinner blade was easier on the wheel than trying to go side-to-side with the thicker chisel. I had a heck of a time trying to grind a straight cutting edge given all the motion. Even with much care it was difficult for me. Even though I used water as a coolant, I still ended up overheating a bit. Anyway, while mine aren't nearly as pretty as those in the videos, they were brought back to a decent blade and worked well on some scrap stock. I hope to use them on some wood windows that have some rot in them soon. Anyway, good exercise for me. Hopefully next time I can make them a bit more pretty.
SharpenTwoChisels1.jpg
Two abused chisels.
Two abused chisels.
SharpenTwoChisels2.jpg
Closer view of underside of cutting surface of abused chisels.
Closer view of underside of cutting surface of abused chisels.
SharpenTwoChisels3.jpg
Top view of the abused chisels.
Top view of the abused chisels.
SharpenTwoChisels4.jpg
Closer view of upperside of cutting surface of abused chisels.
Closer view of upperside of cutting surface of abused chisels.
SharpenTwoChisels5.jpg
Bench grinder used to put new bevels on the chisels.
Bench grinder used to put new bevels on the chisels.
SharpenTwoChisels6.jpg
600 grit emery paper used to hone the chisels. Wider chisel shown.
600 grit emery paper used to hone the chisels. Wider chisel shown.
SharpenTwoChisels7.jpg
600 grit emery paper used to hone the chisels. Thinner chisel shown.
600 grit emery paper used to hone the chisels. Thinner chisel shown.
SharpenTwoChisels8.jpg
Thicker chisel shaving scrap curls.
Thicker chisel shaving scrap curls.
SharpenTwoChisels9.jpg
Thinner chisel shaving scrap curls.
Thinner chisel shaving scrap curls.
Staff note (gir bot) :

Mike Haasl approved this submission.

 
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