
Overall Thread Thread+Neck Shank Shank Size of Length of
length length length length dia. square square
L ℓ ℓn ℓs Ds K ℓk
TYPE:1 DIN371 TYPE:2 DIN371
(for blind hole)
Spiral Fluted Taps Spiral Fluted Taps Spiral Pointed Taps
(for through hole)
TYPE:3 DIN371 TYPE:4 DIN376
(for through hole)
Hand Taps
Segment:1D
L ℓ ℓn ℓs Ds K ℓk No. of
Size Class Code Chamfer Type Stock
(mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes
For Metric Threads
Carbide Taps
Cemented
M2 × 0.4 ISO2 SE2.0EALEN 2.5P 45 8 - - 2.8 2.1 5 2 1 ●
M2.5 × 0.45 ISO2 SE2.5FALEN 2.5P 50 8 15 33 2.8 2.1 5 2 2 ●
M3 × 0.5 ISO2 SE3.0GALEN 2.5P 56 9 18 34 3.5 2.7 6 3 2 ●
M4 × 0.7 ISO2 SE4.0IALEN 2.5P 63 13 21 38 4.5 3.4 6 3 2 ●
Roll Taps
M5 × 0.8 ISO2 SE5.0KALEN 2.5P 70 14 25 39 6 4.9 8 3 2 ●
M6 × 1 ISO2 SE6.0MALEN 2.5P 80 15 30 45 6 4.9 8 3 2 ●
M8 × 1.25 ISO2 SD8.0NALEN 2.5P 90 19 35 47 8 6.2 9 3 3 ●
M10 × 1.5 ISO2 SD010OALEN 2.5P 100 23 39 52 10 8 11 3 3 ●
Simple Inspection Tools
Special Thread Taps
M12 × 1.75 ISO2 SG012PALEN 2.5P 110 26 - 56 9 7 10 3 4 ●
M14 × 2 ISO2 SG014QALEN 2.5P 110 26 - 56 11 9 12 3 4 ●
M16 × 2 ISO2 SG016QALEN 2.5P 110 26 - 56 12 9 12 3 4 ●
Pipe Taps
Thread Mills
Dies
Center Drills
Centering Tools
DIN
SP-18
69