Question about Yankee Driver drill bits.....

[Bill White]

Finally found some drill bits for the smaller sized Yankee driver.
Question is about how to sharpen the drill bits. The originals are in pretty good shape, but would like to know about touching up the bits.
Your help is always appreciated.
Bill

[lowell holmes]

Finally found some drill bits for the smaller sized Yankee driver.
Question is about how to sharpen the drill bits. The originals are in pretty good shape, but would like to know about touching up the bits.
Your help is always appreciated.
Bill

I would have touched up my bits on a stone. It's worked for me.