Diamond Drag Engraving a clone M16A2 lower.

Testing out methods to get as near to the original roll marks on a retro build. I first tried laser and was not too crazy about that then tried an end mill and that looked great but too perfect so I ordered the Tormach TTS Diamond Drag kit (a 90* and 120* bit) and laid down the first pass with the 120 then an additional pass with the 90 and I like how it came out. I was able to rub the burs off with my finger.