Hi - I am confused about how a 3/8 inch cutting tool fits in the standard tool holder of a HF 8x12 Lathe and aligns with the center line of the part ? The tool is about 1/8 inch low from center line . Does that mean that I should be using a 1/2 inch tool, yet the specs call for a 3/8 inch tool ? Years ago I used the tipping type tool post which you could tip to perfect alignment.