Overall Thread Position on Shank Size of Length of
length length basic dia. dia. square square

L ℓ ℓg Ds K ℓk


(for blind hole)
Spiral Fluted Taps Spiral Fluted Taps Spiral Pointed Taps
FC-PT
Hand Taps for Taper Pipe Threads, Long (ℓg) Type, for Cast Irons
Specification


(for through hole)
■FC-PT is suitable for hard and abrasive materials such as
cast irons.
E
Nitride
PT 3/4 ~
Recommended Tapping Speeds depending on Materials


(for through hole)
Cast irons Ductile cast irons

5 〜
5
(m/min) (m/min)
For icon explanation, refer to P.50


Hand Taps
TYPE:1 TYPE:2


Carbide Taps
Cemented
g g


Segment:1G


Roll Taps
Basic
Size Class Code Chamfer major dia L ℓ ℓg Ds K ℓk No. of Type Stock
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) flutes
For Pipe Threads
PT 1/16-28 Ⅱ FCPT01K-8 2.5P 7.723 55 19 13 8 6 9 4 1 △


Simple Inspection Tools
Special Thread Taps
PT 1/8-28 Ⅱ FCPT02K 2.5P 9.728 55 19 13 8 6 9 4 2 △
PT 1/4-19 Ⅱ FCPT04- 2.5P 13.157 62 28 21 11 9 12 4 2 △
PT 3/8-19 Ⅱ FCPT06- 2.5P 16.662 65 28 21 14 11 14 4 2 △
PT 1/2-14 Ⅱ FCPT08Q 2.5P 20.955 80 35 25 18 14 17 4 2 △
Ⅱ △


Pipe Taps
PT 3/4-14 FCPT12Q 2.5P 26.441 85 35 25 23 17 20 4 2
PT 1 -11 Ⅱ FCPT16U 2.5P 33.249 95 45 32 26 21 24 5 2 △
PT 1 1/4-11 Ⅱ FCPT20U 2.5P 41.910 105 45 32 32 26 30 5 2 △
PT 1 1/2-11 Ⅱ FCPT24U 2.5P 47.803 110 45 32 38 29 32 6 2 △
PT 2 -11 Ⅱ FCPT32U 2.5P 59.614 120 50 35 46 35 38 6 2 △
Thread Mills
Dies
Center Drills
Centering Tools


JIS
◎=Standard ○=Semi standard △=Made to order
Pipe-22
For improvement, spec may change without advance notice. 571