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Thread cutting tools 171

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Overview – Hand and machine thread taps

Cutting Tools 1

Thread type

M

M

M

G

G

M

M

NPT

Colour ring

Order No.

1649

1651

1649

1649

1649

1673

1738

1670

Threaded section

M3–M10

M3–M10

M12–M20

G 1/8"

G 1/4"–G 1"

M2–M20

M3–M20

1/16"–1"

For through threads

≤ 1 x D

≤ 3 x D

≤ 1,5 x D

For blind holes

≤ 1,5 x D

≤ 1,5 x D

Type/form

N/B

NR 15/C

N/C

Material

HSS

HSS

HSS

HSS

HSS

HSS-E

HSS-E

HSS-E

Tolerance zone

ISO 2 6H

ISO 2 6H

Surface

Bright

Bright

Bright

Bright

Bright

Bright

Bright

Bright

Page

1/175

1/176

1/179

1/179

1/180

1/184

1/185

1/185

Material group

Steels up to 850 N/mm 2 Steels up to 1000 N/mm 2 Steels up to 1400 N/mm 2

C

C

C

C

C

U

U

C

Steels up to 42 HRC

Steels up to 52 HRC

Steels up to 56 HRC

Steels up to 60 HRC

Hard processing over 60 HRC

Stainless and acid- resistant steels (INOX)

Ti steels, Ti alloys, special steels

Cast-iron materials

U

Al, Al- and Mg alloy

V

C

V

V

V

U

U

C

Copper, brass, bronze

C

C recommended

U suitable

V limited suitability

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