
Alesator cylindricatus ad varias operationes alesatorias destinatur, sed praecipue ad stabiliendum dum perforatur in formationibus valde abrasivis. Magnitudinibus foraminum ab 4 5/8 ad 26 pollices aptabitur. Praeterea, singula corpus, simplici adaptatione cuspiderum et recta selectione cultrorum, amplae varietati magnitudinum foraminum conveniet.
Tres genera diversa (T, F et B) cultrorum offeruntur:
Typus T: Fresatus, machinatus cum dentibus acutis dura superficie ad formationes mollis.
Typus F: Fresatus, dentibus planis durae superficiei machinatus, ad formationes mediocriter duras.
Typus B: Instructus bullis e carburo tungsteno impressis, ad formationes duras.
| Magnitudo Foraminis (unciae/mm) | Nexus. API | Diametros Externus Colli (unciae/mm) | Diameter Secatoris (unciae/mm) | Longitudo Secatoris (unciae/mm) | Longitudo Totalis (unciae/mm) |
| 28" (711.2) | 7 5/8 REG | 9 1/2" (241.3) | VII" (CLXXVIII) | 15 3/4" (400) | 112 7/8" (2867) |
| 26" (660.4) | 7 5/8 REG | 9 1/2" (241.3) | VII" (CLXXVIII) | 15 3/4" (400) | 118 7/64" (3000) |
| 24" (609.6) | 7 5/8 REG | 9 1/2" (241.3) | 6 7/32" (158) | 15 3/4" (400) | 110 15/64" (2800) |
| 22" (558.8) | 7 5/8 REG | 9 1/2" (241.3) | 6 7/32" (158) | 15 3/4" (400) | 105" (2667) |
| 17 1/2" (444.5) | 7 5/8 REG | 9" (229) | 5 1/2" (140) | Duodecim unciae (CCCIV) | 88 39/64" (2200) |
| 12 1/4" (331.2) | 6 5/8 REG | Octo" (203) | 3 15/16" (100) | 11 13/16" (300) | 74 13/16" (1900) |
| 8 1/2" (215.9) | NC50 (4 1/2 REG) | 6 1/2" (165) | 2 13/16" (71) | 7 7/8" (200) | 68 7/64" (1730) |
| 6" (152.4) | NC38 (3 1/2 REG) | 4 3/4" (121) | 2" (50.6) | 7 7/8" (200) | 55 1/8" (1400) |
| 5 7/8" (149.2) | NC38 (3 1/2 REG) | 4 3/4" (121) | 1 13/16" (46.2) | 7 7/8" (200) | 55 1/8" (1400) |
Inquisitio
5-1203, Zona Industrialis Dahua, Via Yunshui No.2, Zona progressionis technologiae altae, Xi'an, 710065, Sina.
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