Alfa Tools General Product Catalog

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Spiral Fluted Taps High-Speed Steel Ground Thread

• Spiral fluted taps draw chips out of a tapped hole, thereby preventing clogging and recutting of chips • Will bridge a keyway or other slot inside a hole without binding • Can be used for tapping most materials, especially mild steel, aluminum, magnesium, copper and brass in blind holes Chamfer: Plug (3 to 5 threads) Bottoming (1 to 2 threads) Features:

Fast Spiral

PLUG CHAMFER

BOTTOMING CHAMFER

TAP SIZE

NO. OF FLUTES

GRIND LIMITS

TAP SIZE

NO. OF FLUTES

GRIND LIMITS

TPI

STOCK #

TPI

STOCK #

MACHINE SCREW SIZES

MACHINE SCREW SIZES

48 56 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16

2 2 2 2 2 2 2 2

H2 H2 H2 H2 H2 H2 H3 H2 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3

SFTB170905 SFTB170906 SFTB170907 SFTB170908 SFTB170909 SFTB170910 SFTB170911 SFTB170912 SFTB170913 SFTB170914 SFTB170915 SFTB170916 SFTB170917 SFTB170918 SFTB170930 SFTB170931 SFTB170932 SFTB170933 SFTB170934 SFTB170935 SFTB170936 SFTB170937 SFTB170938 SFTB170939 SFTB170940 SFTB170941 SFTB170942 SFTB170943 SFTB170946 SFTB170947

48 56 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16

2 2 2 2 2 2 2 2

H2 H2 H2 H2 H2 H2 H3 H2 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3

SFTP170905 SFTP170906 SFTP170907 SFTP170908 SFTP170909 SFTP170910 SFTP170911 SFTP170912 SFTP170913 SFTP170914 SFTP170915 SFTP170916 SFTP170917 SFTP170918 SFTP170930 SFTP170931 SFTP170932 SFTP170933 SFTP170934 SFTP170935 SFTP170936 SFTP170937 SFTP170938 SFTP170939 SFTP170940 SFTP170941 SFTP170942 SFTP170943 SFTP170946 SFTP170947

3 3 4 4 5 5 6 6 8 8

3 3 4 4 5 5 6 6 8 8

2-3 2-3 2-3 2-3 2-3 2-3

2-3 2-3 2-3 2-3 2-3 2-3

Spiral Fluted Taps

10 10 12 12

10 10 12 12

B

FRACTIONAL

FRACTIONAL

2-3 2-3

2-3 2-3

1/4" 1/4"

1/4" 1/4"

3 3 3 3

3 3 3 3

5/16" 5/16"

5/16" 5/16"

3/8" 3/8"

3/8" 3/8"

3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4

3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4

7/16" 7/16"

7/16" 7/16"

1/2" 1/2"

1/2" 1/2"

9/16" 9/16"

9/16" 9/16"

5/8" 5/8" 3/4" 3/4"

5/8" 5/8" 3/4" 3/4"

4 4

4 4

3 to 1/4", 12 per pack, 5/16" to 1/2", 6 per pack 9/16" to 3/4", 3 per pack

3 to 1/4", 12 per pack, 5/16" to 1/2", 6 per pack 9/16" to 3/4", 3 per pack

B-18

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