[AT] Drill bits for drilling our old tractor steel and iron.

[Cecil Bearden]

That is the problem with those American Made Drill Bits sold at the farm 
shows.  They are case harddened.  When they are resharpened the 
hardening is gone...
Cecil

On 10/25/2019 4:22 PM, szabelski at wildblue.net wrote:
>
> Not all resharpened drills will keep an edge like a new drill. The manufacturers sometimes temper the cutting edge a little and the rest of the drill will be slightly softer. I’ve seen drills that snap when they get stuck in a piece of work, and then seen others that twist the flutes almost straight when they get stuck.
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