Circular Saw Blade Examples.:
Vault of Glass Map
Destiny - Rise of Iron - Skeleton Key Visual Loot Guide
Polygon Table - Help Building One
3 types of rounded cylinder caps.
DIY Tip of the Day: Jacked-Up Outfeed Roller. To assemble an adjustable outfeed…
Using a Shop Vacuum for Dust Collection
Pegboard Flip Book Storage
FAQ: How u model dem shapes? Hands-on mini-tuts for mechanical sub-d AKA ADD MORE GEO - Page 93 - Polycount Forum
Looks fine to me, I think now you can use the convert to editable mesh and back to poly trick, also reset the normals and export as obj and reimport it if there are more issues.