- Nov 14, 2009
- Rocky Mountains
I didn't figure my time but........My DD broke even the first day I had it
At $1.55 for a #20 cobalt it doesn't take too many* to equal the cost of a sharpener. The real value is when you need one now and there is no place to get one except the used bit bin.
* About 77, less as the size gets larger. 1/2" = $9 for an average of about $4 per bit = about 30 bits. Obviously, we don't use too many of the larger size for EABs or use all sizes for the same number of holes.