Threading Tools Notes Page 16

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T T-14
HIGH SPEED STEEL
(STI) SCREW THREAD INSERT HAND TAPS
SPECIAL PURPOSE
ICS
USA
GROUND THREAD
PLUG TAP
BOTTOMING TAP
3-5 Thread Chamfer
1-2 Thread Chamfer
at 8 degrees per side
at 18 degrees per side
High Speed Steel STI (Screw Thread Insert) Hand Taps are oversize taps designed to produce threads that will
accommodate a “Helicoil” or screw thread inserts of the same nominal size and pitch.
THREADS
PRICE
THREADS
PRICE
PER INCH
EACH
PER INCH
EACH
NO. OF
LIMIT
NO. OF
LIMIT
PLUG-BOTT.
PLUG-BOTT.
NC
NF
NC
NF
SIZE
FLUTES
NO.
SIZE
FLUTES
NO.
UNC
UNF
UNC
UNF
STIT
STIT
4
40
-
3
H2
$20.44
5/16
18
24
4
H3
$26.32
6
32
-
3
H3
20.44
3/8
16
24
4
H3
34.16
8
32
-
3
H3
22.30
7/16
14
20
4
H3
37.60
10
24
32
3
H3
22.96
1/2
13
20
4
H3
43.92
1/4
20
28
3
H3
22.34
3/4
10
-
4
H3
63.02
HIGH SPEED STEEL
(STI) SCREW THREAD INSERT
SPIRAL POINT PLUG TAPS
SPECIAL PURPOSE
ICS
USA
GROUND THREAD
PLUG
CHAMFER
High Speed Steel STI (Screw Thread Insert) Spiral Point Taps are oversize taps designed to produce threads that will
accommodate a “Helicoil” or screw thread inserts of the same nominal size and pitch.
PRICE
THREADS
PRICE
THREADS
PER INCH
EACH
PER INCH
EACH
NO. OF
LIMIT
NO. OF
LIMIT
PLUG
PLUG
NC
NF
NC
NF
SIZE
FLUTES
NO.
SIZE
FLUTES
NO.
UNC
UNF
UNC
UNF
STISPT
STISPT
4
40
-
2
H2
$21.84
5/16
18
24
3
H3
$27.84
6
32
-
2
H3
21.84
3/8
16
24
3
H3
36.64
8
32
-
2
H3
23.52
7/16
14
20
3
H3
43.68
10
24
32
2
H3
24.40
1/2
13
20
3
H3
47.60
1/4
20
28
2
H3
24.06

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