Plural Holes
| No. | Material | Configuration | Outer Diameter | Internal Diameter |
|---|---|---|---|---|
| 1 | Natural Quartz | 2 holes | φ0.79 | φ0.132 |
| 2 | Natural Quartz | 2 holes, P.C.D. 1.4 | φ4 | φ0.75 |
| 3 | Natural Quartz | 2 holes, P.C.D. 1.4 | φ5 | φ0.75 |
| 4 | Natural Quartz | 2 holes, P.C.D. 1.6 | φ5 | φ0.65 |
| 5 | Natural Quartz | 2 holes, pitch 0.05 | φ0.45 | φ0.04 |
| 6 | Natural Quartz | 2 holes, pitch 1.75 | φ4.3 | φ0.75 |
| 7 | Natural Quartz | 2 holes, pitch 1.8 | φ7 | φ1.2 |
| 8 | Natural Quartz | 3 holes | φ1.59 | φ0.5 |
| 9 | Natural Quartz | 3 holes | φ7 | φ1.3 |
| 10 | Natural Quartz | 3 holes, P.C.D. 2 | φ7 | φ1.3 |
| 11 | Natural Quartz | 3 holes, P.C.D. 3 | φ7 | φ1 |
| 12 | Natural Quartz | 3 holes, P.C.D. 3 | φ7 | φ1.3 |
| 13 | Natural Quartz | 3 holes, P.C.D. 3 | φ7.2 | φ1.3 |
| 14 | Natural Quartz | 3 holes, pitch 0.67 | φ1.95 | φ0.1 |
| 15 | Natural Quartz | 4 holes, P.C.D. 2 | φ4 | φ0.5 |
| 16 | Natural Quartz | 4 holes, P.C.D. 2 | φ5 | φ0.75 |