Pennoyer-Dodge Company |
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| Metric Thread Ring Gages | ||||
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Nominal Size |
Go or Not Go 6g Rings |
Go and Not Go 6g Pair of Rings |
Ring Holder | Ring Holder Size |
| M1.6 x 0.35 | 207.00 | 414.00 | 30.00 | # 1T |
| M2.0 x 0.40 | 178.00 | 356.00 | 30.00 | # 1T |
| M2.5 x 0.45 | 178.00 | 356.00 | 30.00 | # 1T |
| M3.0 x 0.50 | 158.00 | 316.00 | 30.00 | # 1T |
| M3.5 x 0.60 | 158.00 | 316.00 | 30.00 | # 1T |
| M4.0 x 0.70 | 148.00 | 296.00 | 30.00 | # 1T |
| M5.0 x 0.80 | 148.00 | 296.00 | 30.00 | # 1T |
| M6.0 x 1.00 | 132.00 | 264.00 | 30.00 | # 1T |
| M8.0 x 1.25 | 132.00 | 264.00 | 30.00 | # 2T |
| M10 x 1.25 | 139.00 | 278.00 | 30.00 | # 3T |
| M10 x 1.50 | 139.00 | 278.00 | 30.00 | # 3T |
| M12 x 1.25 | 143.00 | 286.00 | 30.00 | # 3T |
| M12 x 1.50 | 148.00 | 296.00 | 30.00 | # 3T |
| M12 x 1.75 | 148.00 | 296.00 | 30.00 | # 3T |
| M14 x 1.50 | 163.00 | 326.00 | 35.00 | # 4T |
| M14 x 2.00 | 163.00 | 326.00 | 35.00 | # 4T |
| M16 x 1.50 | 163.00 | 326.00 | 35.00 | # 4T |
| M16 x 2.00 | 163.00 | 326.00 | 35.00 | # 4T |
| M18 x 1.50 | 218.00 | 436.00 | 35.00 | # 4T |
| M18 x 2.50 | 255.00 | 510.00 | 35.00 | # 4T |
| M20 x 1.50 | 265.00 | 530.00 | 35.00 | # 4T |
| M20 x 2.50 | 265.00 | 530.00 | 35.00 | # 4T |
| M22 x 1.50 | 270.00 | 540.00 | 40.00 | # 5T |
