Good results in cold rolled mild steel bar

[Shawn]

I was thinking it was probably how sharp the edge was with the added angle of the chip breaker that made the difference. What I did learn for sure was I need to keep tweaking my tool grinding skills and experimenting with different geometry. I might be sick but I actually enjoy grinding HSS bits, requires some concentration and provides me with instant gratification. I have a lifetime supply of high quality HSS/cobalt blanks so I will be grinding for years yet, will definately give inserts a go at some point though.