
The BLF is suitable for deep hole tapping and presents the
| E following advantages thanks to its geometry with the truncated crests: | ||
| 1. Elimination of chipping problems at the taps full thread portion. | ||
| 2. Good chip ejection. | ||
| M26~ 3. Reduction of tapping friction. | ||
| Recommended Tapping Speeds depending on Materials | 4. The internal threads are cut by the chamfer and the 1st full thread. | |
| The full thread portion follows the internal threads just cut, and | ||
| Carbon steel and | drives or rotates the tap forward based on the pitch of the threads. | |
| low alloy steel | Since only half of threads are truncated, the BLF tap does not | |
| IS P | lose its guiding function, making sure that the tap is able to move | |
| 5〜10 | forward following the pitch of the threads. | |
| (m/min) | ||
| For icon explanation, refer to P.50 | ||
| TYPE:1 | DIN371 | DIN371 TYPE:2 |
TYPE:3 DIN376 TYPE:4 DIN376
Segment:1D
| Size | Class | Code | Chamfer | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | No. of flutes | Type | Stock |
| For Metric Thread | s | ||||||||||||
| M3×0.5 | ISO2 | SD3.0GANEBJ | 2.5P | 56 | 9 | 18 | 34 | 3.5 | 2.7 | 6 | 3 | 1 | ● |
| M4×07 | ISO2 | SD4.0IANEBAJ | 1.5P | 63 | 13 | 21 | 38 | 4.5 | 3.4 | 6 | 3 | 1 | ● |
| . | SD4.0IANEBJ | 2.5P | 63 | 13 | 21 | 38 | 4.5 | 3.4 | 6 | 3 | 1 | ● | |
| M5×08 | ISO2 | SD5.0KANEBAJ | 1.5P | 70 | 14 | 25 | 39 | 6 | 4.9 | 8 | 3 | 1 | ● |
| . | SD5.0KANEBJ | 2.5P | 70 | 14 | 25 | 39 | 6 | 4.9 | 8 | 3 | 1 | ● | |
| ISO2 | SD6.0MANEBAJ | 1.5P | 80 | 15 | 30 | 45 | 6 | 4.9 | 8 | 3 | 1 | ● | |
| M6×1 | SD6.0MANEBJ | 2.5P | 80 | 15 | 30 | 45 | 6 | 4.9 | 8 | 3 | 1 | ● | |
| M8×125 | ISO2 | SD8.0NANEBAJ | 1.5P | 90 | 19 | 35 | 47 | 8 | 6.2 | 9 | 3 | 2 | ● |
| . | SD8.0NANEBJ | 2.5P | 90 | 19 | 35 | 47 | 8 | 6.2 | 9 | 3 | 2 | ● | |
| M10×15 | ISO2 | SD010OANEBAJ | 1.5P | 100 | 23 | 39 | 52 | 10 | 8 | 11 | 3 | 2 | ● |
| . | SD010OANEBJ | 2.5P | 100 | 23 | 39 | 52 | 10 | 8 | 11 | 3 | 2 | ● | |
| × | ISO2 | SG012PANEBAJ | 1.5P | 110 | 26 | - | 56 | 9 | 7 | 10 | 3 | 3 | ● |
| M121.75 | SG012PANEBJ | 2.5P | 110 | 26 | - | 56 | 9 | 7 | 10 | 3 | 3 | ● | |
| M14×2 | ISO2 | SG014QANEBJ | 2.5P | 110 | 26 | - | 56 | 11 | 9 | 12 | 3 | 3 | ● |
| M16×2 | ISO2 | SG016QANEBJ | 2.5P | 110 | 26 | - | 56 | 12 | 9 | 12 | 3 | 3 | ● |
| M18×2.5 | ISO2 | SG018RANEBJ | 2.5P | 125 | 33 | - | 64 | 14 | 11 | 14 | 4 | 3 | ● |
| M20×2.5 | ISO2 | SG020RANEBJ | 2.5P | 140 | 33 | - | 71 | 16 | 12 | 15 | 4 | 3 | ● |
| M22×2.5 | ISO2 | SG022RANEBJ | 2.5P | 140 | 33 | - | 71 | 18 | 14.5 | 17 | 4 | 3 | |
| M24×3 | ISO2 | SG024SANEBJ | 2.5P | 160 | 37 | - | 82 | 18 | 14.5 | 17 | 4 | 4 | ● |