General Rules for Tolerances of Glass and Ceramic Preforms
Minimum tolerances of diameters (outside and inside)
| < .100″ | +/− .001″ |
| .100″ – .200″ | +/− .002″ |
| .200″ – .350″ | +/− .0025″ |
| .350″ – .500″ | +/− .003″ |
| .500″ – 1.000″ | +/− .004″ |
| 1.00″ and up | +/− .005″ |
Length tolerance is a minimum +/− .002″
Weight Tolerances
| 0 mg – 7 mg | mean +/− 5% |
| 7 mg – 500 mg | mean +/− 2.5% |
| 500 mg and up | mean +/− 2% |
(Tolerances maybe adjusted up or down depending on circumstance)
For additional information and specifications, please contact us.