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.