Preci Chuck Accuracy Chart

 Testing Results in
 mm
Tolerance as per I.S. 2876-78 Grade
     
 OD and face
 Ø150 - Ø250 0.05 0.02
 Ø330 - Ø400 0.08 0.03
     
 Run out on test mandrel held in jaws
 Ø150 - Ø250 0.075 0.015
 Ø330 0.075 0.02
 Ø400 0.075 0.03
     
 Concentricity face runout over disc runout
 Ø150 - Ø250 0.075 0.01
 Ø330 - Ø400 0.075 0.02