Measuring Surface Finish on Small Brass Worms

[Spurs]

Can anyone steer me to a company that can measure the surface finish on .6 module brass worms (ie. 6 mm diameter) Any companies I have tried have told me that the parts are too small for their equipment.

Any suggestions would be appreciated

 

[TVP]

You might try a company with optical or laser microscopes that also have software for computing surface roughness. Michigan Metrology may be an option.

 

[dimjim]

Can't you use visual methods to confirm your
surface finish? How fine a surface do you need?

 

[Spurs]

I am looking for Rz 1.6

 

[dimjim]

http://news.thomasnet.com/fullstory/465573/rss/1782

Is that microinches?

 

[Spurs]

no microns