- 7" x 1/4" precision shaft
- Made from 303 stainless steel
- 83B rockwell hardness
- 10 RMS micron rated finish
The Actobotics 7" x 1/4" Precision Shaft is made from 303 stainless steel for superior strength and precision. Rockwell hardness is 83B with a 10 RMS micron rated finish.