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Thread cutting tools 179

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Overview - Machine thread drills

Cutting Tools 1

Thread type

UNF

Pg

M

M

M

M

MF

MF

M

M

Colour ring

green

blue/red

blue/red

Order No.

1749

1777

1780

1783

1784

1787

1785

1789

1660

1661

Nr. 10–32"– 1–12"

Threaded section

7–36

M3–M16 M3–M12 M3–M16 M3–M16 M6–M20 M6–M20 M3–M10 M3–M20

For through threads

≤ 1,5 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D

≤ 3 x D

≤ 3 x D

For blind holes

≤ 3 x D

≤ 1,5 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D ≥ 1,0 x D

Type/form

N/C

N/C

N

N

N

INOX

N

INOX

N

N

Material

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E PM HSS-E

HSS-E PM HSS-E

HSS-E

Tolerance zone

2 B

6 HX

6 GX

6 HX

6 HX

6 HX

6 HX

ISO 2 6H ISO 2 6H

Surface

TiN

TiN

TiN

TiN

TiN

Steam

Steam

Steam

Bright

TiN

Page

1/219

1/221

1/221

1/221

1/221

1/222

1/222

1/222

1/199

1/199

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

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

Steels up to 42 HRC

C

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)

C

C

C

C

C

C

C

C

Ti steels, Ti alloys, special steels

C

C

C

C

C

C

Cast-iron materials

C

C

Al, Al- and Mg alloy

C

C

C

C

C

C

C

C

C

C

Copper, brass, bronze

C recommended

U suitable

V limited suitability

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