MICHAEL
Elite Cafe Member
I thought I understood and had my heel length down but the other day everything went to crap after I shaped / sharpened several 90/ 120 degree tools (tips breaking off on long heels / tip either diving into metal with short heel or skidding across brass; probably b/c tip snapped and i didn't see till it got worse). I think that my heel length is shorter than what I was using before and thought maybe I should measure the heel length to get positive results every time I engrave. I remember Sam saying the heel length needs to be less than 1/4 mm but do I measure from the tip straight back? And if a mm is 0.039" or 39 thousandth's on my dial calipers, then measuring this way my 120 tool is around 0.032" and it cuts well. My 90 dgree tool is around 0.010" and dives into the metal. I just wanted to understand this better before changing all my heels. Thanks in advace for any help.:thumbs up: