[iamcatguy]

This thread shows you how much damage a cog can take.

Level 1: 6
Level 2: 12
Level 3: 20
Level 4: 30
Level 5: 42
Level 6: 56
Level 7: 72
Level 8: 90
Level 9: 110
Level 10: 132
Level 11: 156
Level 12: 200

And there you have it.