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Thread cutting tools 178

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Overview - Machine thread drills

Cutting Tools 1

Thread type

G

G

G

UNC

UNC

UNC

UNC

UNF

UNF

UNF

Colour ring

yellow

yellow

blue

yellow

yellow

green

green

yellow

yellow

green

Order No.

1765

1745

1766

1768

1770

1746

1747

1772

1774

1748

G 1/8"– G 1.1/2"

Nr. 2–56"– 1–8"

Nr. 4–40"– 1–8"

Nr. 4–40"– 3/4–10"

Nr. 4–40"– 7/8–9"

Nr. 10–32"– 1–12"

Nr. 10–32"– 1–12"

Nr. 10–32"– 1–12"

Threaded section

G 1/8"– G 1" G 1/8"–G 1"

For through threads

≤ 3 x D

≤ 3 x D

≤ 3 x D

≤ 3 x D

For blind holes

≤ 3 x D

≤ 3 x D

≤ 3 x D

≤ 3 x D

≤ 3 x D

≤ 3 x D

Type/form

NR 40/C

NR 40/C INOX R 40/C

N/B

NR 40/C

N/B

N/C

N/B

NR 40/C

N/B

Material

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E

HSS-E

Tolerance zone

ISO 228

ISO 228

ISO 228

2 B

2 B

2 B

2 B

2 B

2 B

2 B

Surface

Steam

TiCN

Steam

Steam

Steam

Bright

Bright

Bright

Bright

Bright

Page

1/213

1/213

1/214

1/215

1/215

1/216

1/216

1/218

1/218

1/219

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

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)

C

U

Ti steels, Ti alloys, special steels

Cast-iron materials

Al, Al- and Mg alloy

C

C

C

C

C

C

C

C

C

Copper, brass, bronze

C recommended

U suitable

V limited suitability

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