
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 DIN374
(for through hole)
Hand Taps
Segment:1J
Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe Type Stock
(mm) (mm) (mm) (mm) (mm) (mm) (mm)
For Metric Threads
Carbide Taps
Cemented
RD6.0MBOCTP 4P 1
M6 × 1 ISO2X 80 11 30 45 6 4.9 8 5 ●
RD6.0MBOCTB 2P 2
RD8.0NBOCTP 4P
M8 × 1.25 ISO2X 90 12 35 47 8 6.2 9 6 3 ●
RD8.0NBOCTB 2P
Roll Taps
RD010OBOCTP 4P
M10 × 1.5 ISO2X 100 13 39 52 10 8 11 8 3 ●
RD010OBOCTB 2P
RM010NBOCTP 4P
M10 × 1.25 ISO2X 100 13 - 51 7 6.2 9 8 4 ●
RM010NBOCTB 2P
Simple Inspection Tools
Special Thread Taps
RM012OBOCTP 4P
M12 × 1.5 ISO2X 100 15 - 51 9 7 10 8 4 ●
RM012OBOCTB 2P
RM012NBOCTP 4P
M12 × 1.25 ISO2X 100 15 - 51 9 7 10 8 4 ●
RM012NBOCTB 2P
RM014OBOCTP 4P
Pipe Taps
M14 × 1.5 ISO2X 100 14 - 51 11 9 12 8 4 ●
RM014OBOCTB 2P
Number of oil grooves : M6 = 5, M8 = 6, M10 and larger = 8
Taps with 2 thread chamfer M6 and smaller : External centers on thread end are removed.
Thread Mills
Dies
Center Drills
Centering Tools
DIN
RO-10
175