12-14-2013, 05:12 PM
Just one works very well. I use the 220 lapping compound that came with my ring lapping kit. So, correct. You're not polishing.
The only steps needed to lap your upper:
Lap with compound
Stop soon
Wipe & check for 100% contact
Repeat as needed.
The only steps needed to lap your upper:
Lap with compound
Stop soon
Wipe & check for 100% contact
Repeat as needed.
"A problem thoroughly understood is always fairly simple. Found your opinions on facts, not prejudices. We know too many things that are not true."
Charles F. Kettering