| 30-1891 | HAM 270 | HAM 271 |
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| HAM 30-1891 (HAM Nirodrill) solid carbide spiral drill 3 x D |
|
Engineering data
• special chip flute geometry • special point ground for machining of stainless steel • 30° RH helix |
![]() The current production will be changed to the version with MMP |
| Material | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
| 30-1891 | |
| very suitable limited suitable | |
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| Ø d1 (m7) mm |
l3 mm |
l2 mm |
l1 mm |
Ø d2 (h6) mm |
Ø d1 (m7) mm |
l3 mm |
l2 mm |
l1 mm |
Ø d2 (h6) mm |
|
| 2 | 10 | 14 | 46 | 4 | 6.9 | 24 | 34 | 79 | 8 | |
| 2.2 | 10 | 14 | 46 | 4 | 7 | 24 | 34 | 79 | 8 | |
| 2.3 | 10 | 14 | 46 | 4 | 7.4 | 29 | 41 | 79 | 8 | |
| 2.4 | 10 | 14 | 46 | 4 | 7.5 | 29 | 41 | 79 | 8 | |
| 2.5 | 10 | 14 | 46 | 4 | 7.8 | 29 | 41 | 79 | 8 | |
| 2.55 | 14 | 20 | 50 | 4 | 8 | 29 | 41 | 79 | 8 | |
| 2.7 | 14 | 20 | 50 | 4 | 8.5 | 35 | 47 | 89 | 10 | |
| 2.8 | 14 | 20 | 62 | 6 | 8.6 | 35 | 47 | 89 | 10 | |
| 3 | 14 | 20 | 62 | 6 | 8.8 | 35 | 47 | 89 | 10 | |
| 3.3 | 14 | 20 | 62 | 6 | 9 | 35 | 47 | 89 | 10 | |
| 3.4 | 14 | 20 | 62 | 6 | 9.3 | 35 | 47 | 89 | 10 | |
| 3.5 | 14 | 20 | 62 | 6 | 9.5 | 35 | 47 | 89 | 10 | |
| 3.7 | 14 | 20 | 62 | 6 | 9.8 | 35 | 47 | 89 | 10 | |
| 3.8 | 17 | 24 | 66 | 6 | 10 | 35 | 47 | 89 | 10 | |
| 4 | 17 | 24 | 66 | 6 | 10.2 | 40 | 55 | 102 | 12 | |
| 4.2 | 17 | 24 | 66 | 6 | 10.35 | 40 | 55 | 102 | 12 | |
| 4.3 | 17 | 24 | 66 | 6 | 10.5 | 40 | 55 | 102 | 12 | |
| 4.5 | 17 | 24 | 66 | 6 | 11 | 40 | 55 | 102 | 12 | |
| 4.65 | 17 | 24 | 66 | 6 | 11.2 | 40 | 55 | 102 | 12 | |
| 4.8 | 20 | 28 | 66 | 6 | 11.5 | 40 | 55 | 102 | 12 | |
| 5 | 20 | 28 | 66 | 6 | 11.8 | 40 | 55 | 102 | 12 | |
| 5.1 | 20 | 28 | 66 | 6 | 12 | 40 | 55 | 102 | 12 | |
| 5.5 | 20 | 28 | 66 | 6 | 13 | 43 | 60 | 107 | 14 | |
| 5.55 | 20 | 28 | 66 | 6 | 13.5 | 43 | 60 | 107 | 14 | |
| 5.8 | 20 | 28 | 66 | 6 | 13.8 | 43 | 60 | 107 | 14 | |
| 6 | 20 | 28 | 66 | 6 | 14 | 43 | 60 | 107 | 14 | |
| 6.2 | 24 | 34 | 79 | 8 | 15 | 45 | 65 | 115 | 16 | |
| 6.5 | 24 | 34 | 79 | 8 | 16 | 45 | 65 | 115 | 16 | |
| 6.6 | 24 | 34 | 79 | 8 | ||||||
| 6.8 | 24 | 34 | 79 | 8 |
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