Gage Heads and Master Setting Rings
Triga-Bore Heads
Triga-Bore Heads have a large measuring range and are supplied with fixed anvils eliminating operating error. 24 heads cover .236"-7.87" (6-200mm range). Spherical shaped heads are useful in deep bores where holding the bore gage straight in the bore is difficult. The spherical shape allows only a single contact point per anvil on the bore wall.
3-Point Bore Gage Heads and Master Setting Ring
| Model No. | Contact Line A | Length B | Head Accuracy | Master Setting Ring Bilateral Class 2 Steel | |||
|---|---|---|---|---|---|---|---|
| 20312 | 6-8 | .236-.315 | .109 | 2.36 | .0001 | 21162 | .2912 |
| 20313 | 8-10 | .315-.394 | .118 | 2.36 | .0001 | 21164 | .3437 |
| 20314 | 10-13 | .394-.511 | .157 | 2.36 | .00015 | 21167 | .4375 |
| 20315 | 13-16 | .511-.630 | .157 | 2.36 | .00015 | 21172 | .5625 |
| 20316 | 16-20 | .630-.787 | .280 | 2.36 | .00015 | 21177 | .7187 |
| 20317 | 20-26 | .787-1.023 | .390 | 2.36 | .00015 | 21185 | .9062 |
| 20318 | 26-32 | 1.023-1.260 | .390 | 2.36 | .00015 | 21191 | 1.0312 |
| 20319 | 32-40 | 1.260-1.575 | .433 | 2.75 | .00015 | 21205 | 1.4062 |
| 20320 | 40-50 | 1.575-1.968 | .591 | 2.75 | .00015 | 21450 | 1.7500 |
| 20321 | 50-60 | 1.968-2.362 | .591 | 2.75 | .00015 | 21451 | 2.1875 |
| 20322 | 60-70 | 2.362-2.756 | .591 | 2.75 | .00015 | 21452 | 2.5625 |
| 20323 | 70-80 | 2.756-3.150 | .591 | 2.75 | .00015 | 21453 | 2.9375 |
| 20324 | 80-90 | 3.150-3.543 | .591 | 2.75 | .00015 | 21454 | 3.3437 |
| 20325 | 90-100 | 3.543-3.937 | .591 | 2.75 | .00015 | 21455 | 3.7500 |
| 20326 | 100-110 | 3.937-4.330 | .767 | 2.75 | .00015 | 21456 | 4.1250 |
| 20327 | 110-120 | 4.330-4.724 | .767 | 2.75 | .00015 | 21457 | 4.5625 |
| 20328 | 120-130 | 4.724-5.118 | .767 | 2.75 | .00015 | 21458 | 4.9062 |
| 20329 | 130-140 | 5.118-5.512 | .767 | 2.75 | .00015 | 21459 | 5.3125 |
| 20330 | 140-150 | 5.512-5.906 | .767 | 2.75 | .00015 | 21460 | 5.7187 |
| 20331 | 150-160 | 5.906-6.299 | .767 | 2.75 | .00015 | 21461 | 6.1093 |
| 20332 | 160-170 | 6.299-6.693 | .866 | 2.75 | .0002 | 21462 | 6.5000 |
| 20333 | 170-180 | 6.693-7.087 | .866 | 2.75 | .0002 | 21463 | 6.9062 |
| 20334 | 180-190 | 7.087-7.480 | .866 | 2.75 | .0002 | 21464 | 7.2912 |
| 20335 | 190-200 | 7.480-7.874 | .866 | 2.75 | .0002 | 21465 | 7.6875 |
The above chart indicates which gage head models fit which master setting ring. The model numbers that fall in the same rows are considered complimentary.
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