
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
INT-PT
Interrupted Taps for Taper Pipe Threads, Long (ℓg) Type
Specification
(for through hole)
■INT-PT having low left-hand spiral flutes and having every
other thread ground off, reduces cutting torque.
E INT-PT is suitable for such sticky materials as stainless
Oxide
PT 3/4 ~
steels and chrome molybdenum steels.
Recommended Tapping Speeds depending on Materials
(for through hole)
Stainless steels
〜
5
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 TINT01K-8 3P 7.723 55 19 13 8 6 9 3 1 △
Simple Inspection Tools
Special Thread Taps
PT 1/8-28 Ⅱ TINT02K 3P 9.728 55 19 13 8 6 9 5 2 ○
PT 1/4-19 Ⅱ TINT04- 3P 13.157 62 28 21 11 9 12 5 2 ○
PT 3/8-19 Ⅱ TINT06- 3P 16.662 65 28 21 14 11 14 5 2 ○
PT 1/2-14 Ⅱ TINT08Q 3P 20.955 80 35 25 18 14 17 5 2 ○
Ⅱ ○
Pipe Taps
PT 3/4-14 TINT12Q 3P 26.441 85 35 25 23 17 20 5 2
PT 1 -11 Ⅱ TINT16U 3P 33.249 95 45 32 26 21 24 5 2 ○
PT 1 1/4-11 Ⅱ TINT20U 3P 41.910 105 45 32 32 26 30 5 2 ○
PT 1 1/2-11 Ⅱ TINT24U 3P 47.803 110 45 32 38 29 32 7 2 ○
PT 2 -11 Ⅱ TINT32U 3P 59.614 120 50 35 46 35 38 7 2 △
Thread Mills
Dies
Center Drills
Centering Tools
JIS
◎=Standard ○=Semi standard △=Made to order
Pipe-14
For improvement, spec may change without advance notice. 563