Spiral Tap Series, General Purpose EX-SFT

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Suited for drilling blind holes in materials that leave coil shaped connected cutting debris such as carbon steel, alloyed steel, and non-ferrous metals.

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Product specification
Part Numbers
Catalog

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Part Number
EX-SFT-OH2-1/4-20UNC
EX-SFT-OH2-1/4-28UNF

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	Screw Types	Nominal	Pitch, Number of Threading (mm)	Chamfer threads	L (mm)	Accuracy	Length under neck (mm)	Shank diameter (mm)	Number of Grooves	Thread Length (mm)	Protrusion	Tool No.
	10.85 €	1	Available	6 Days	Unified	1/4UN	20	2.5P	62	OH2	29	6	3	19	Available	18858
	10.51 €	1	Available	6 Days	Unified	1/4UN	28	2.5P	62	OH2	29	6	3	19	Available	18861

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Basic information

Tool Material Type	Vanadium high-speed steel	Work material	Medium carbon steel (carbon content 0.25 to 0.45%) / Alloy Steel (SCM) / Ductile Cast Iron (FCD) / Copper (Cu) / Brass (Bs) / Brass cast iron (BsC) / Bronze (Pb) / Aluminum Rolled Material (AL) / Aluminum Alloy Casting (AC, ADC) / Magnesium Alloy (MC) / Zinc Alloy Casting (ZDC) / Thermoplastic plastic (vinyl chloride, nylon, etc.)	Tap Type	Spiral Tap
Hole type	For blind hole	Coating Y/N	N/A	Coating Type	Non-Coated

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Basic Attributes

Screw Types
- Meter
- Unified
Clear
Pitch, Number of Threading(mm)
0.25

0.3

0.35

0.4

0.45

0.5

0.6

0.7

0.75

0.8

0.9

1

1.25

1.5

1.75

2

2.5

3

3.5

4

4.5

5

5.5

6

7

8

9

10

11

12

13

14

16

18

20

24

28

32

36

40

44

48
Clear
Chamfer threads
2.5P

3P
Clear
L(mm)
30

32

34

36

40

42

44

46

48

52

55

60

62

65

70

72

75

80

82

85

88

90

95

100

105

110

115

120

125

130

135

145

155

160

165

175

180

185

195

205
Clear
Accuracy
OH1

OH2

OH3

OH4
Clear
Length under neck(mm)
19

20

21

24

25

29

33

37

38

41

47

48

49

52

55

58

63

66

68

71

72

74

77

82

85

87

93

95

98

103

108
Clear
Shank diameter(mm)
3

4

5

5.5

6

6.1

6.2

7

8

8.5

9

9.5

10.5

12

12.5

13

14

15

17

18

19

20

21

22

23

24

25

26

28

30

32

35

38

42

44
Clear
Number of Grooves
- 2
- 3
- 4
Clear
Thread Length(mm)
7

8

9

10

11

12

13

14

15

16

17

19

22

24

25

29

30

32

37

38

39

45

48

51

57

60

67

70
Clear
Type
- EX-SFT
Clear
Nominal
1UN

1UNS

M1

1"1/2UN

1"1/4UN

1"1/8UN

1/2UN

1"3/4UN

1"3/8UN

1/4UN

M1.1

M1.2

M1.4

M1.6

M1.7

M1.8

M2

M2.2

M2.3

M2.5

M2.6

M3

3/4UN

3/8UN

M3.5

M4

No4UN

M4.5

M5

No5UN

5/8UN

5/16UN

M5.5

M6

No6UN

M7

7/8UN

7/16UN

M8

No8UN

M9

9/16UN

M10

No10UN

M11

M12

No12UN

M13

M14

M15

M16

M17

M18

M19

M20

M22

M23

M24

M25

M26

M27

M28

M30

M32

M33

M35

M36

M39

M42

M45

M48

M52

M56
Clear