Modeled in 3ds Max 2013 and rendered using V-Ray 2.30.
High-detailed.
Real-world scale (mm).

You can easily change all the parts of the object, the stacks are not collapse.
You can make the Poly count higher by the Meshsmooth level.
Basic light, hdri and environment setup provided (only the V-Ray version, as seen in above images).
Includes V-Ray materials and textures only in 3ds Max format.
NOTE: V-Ray is required for the V-Ray 3ds Max scene.

A file without V-Ray shader is included with standard materials.
The .3ds and .obj formats are geometry with texture mapping coords. No materials attached.