SP-BLF

Spiral Fluted Taps, Deep Hole Use

Specification

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 Materials4. 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 anddrives or rotates the tap forward based on the pitch of the threads.
low alloy steelSince only half of threads are truncated, the BLF tap does not
IS Plose its guiding function, making sure that the tap is able to move
5〜10forward following the pitch of the threads.
(m/min)
For icon explanation, refer to P.50
TYPE:1DIN371DIN371 TYPE:2

TYPE:3 DIN376 TYPE:4 DIN376

Segment:1D

SizeClassCodeChamferL (mm)ℓ (mm)ℓn (mm)ℓs (mm)Ds (mm)K (mm)ℓk (mm)No. of flutesTypeStock
For Metric Threads
M3×0.5ISO2SD3.0GANEBJ2.5P56918343.52.7631
M4×07ISO2SD4.0IANEBAJ1.5P631321384.53.4631
.SD4.0IANEBJ2.5P631321384.53.4631
M5×08ISO2SD5.0KANEBAJ1.5P7014253964.9831
.SD5.0KANEBJ2.5P7014253964.9831
ISO2SD6.0MANEBAJ1.5P8015304564.9831
M6×1SD6.0MANEBJ2.5P8015304564.9831
M8×125ISO2SD8.0NANEBAJ1.5P9019354786.2932
.SD8.0NANEBJ2.5P9019354786.2932
M10×15ISO2SD010OANEBAJ1.5P1002339521081132
.SD010OANEBJ2.5P1002339521081132
×ISO2SG012PANEBAJ1.5P11026-56971033
M121.75SG012PANEBJ2.5P11026-56971033
M14×2ISO2SG014QANEBJ2.5P11026-561191233
M16×2ISO2SG016QANEBJ2.5P11026-561291233
M18×2.5ISO2SG018RANEBJ2.5P12533-6414111443
M20×2.5ISO2SG020RANEBJ2.5P14033-7116121543
M22×2.5ISO2SG022RANEBJ2.5P14033-711814.51743
M24×3ISO2SG024SANEBJ2.5P16037-821814.51744