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Description:


HSS-Co PM · ALCRONA coated · DIN 844 · Type HR · Four-tipped core drill · Long · 45° protective chamfer · Centre cut · Straight shank with pulling face · Right-hand cutting · For milling materials with a strength up to approx. 1400 N/mm² · Improved tool stiffness by conical chip groove base Further technical information: · Material qualification INOX stainless steel: Very suitable · Material qualification cast: Very suitable · Material qualification steel: Very suitable · Material qualification of special alloys: Somewhat suitable · Material qualification NF metals: Somewhat suitable

 

Coating

Cutting material

Free grinding

Length of cutting edge

Length of insert

Marker

No. of cutters

Nominal Ø

Overall length

Shank design

Shank Ø

Standard

Type

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4000866069

ALCRONA coated

HSS-Co PM

5,5 mm

24 mm

30 mm

PROMAT

4

6 mm

68 mm

DIN 1835 B

6 mm

DIN 844

HR

4000866071

ALCRONA coated

HSS-Co PM

7,5 mm

38 mm

44 mm

PROMAT

4

8 mm

88 mm

DIN 1835 B

10 mm

DIN 844

HR

4000866073

ALCRONA coated

HSS-Co PM

9,5 mm

45 mm

53 mm

PROMAT

4

10 mm

95 mm

DIN 1835 B

10 mm

DIN 844

HR

4000866075

ALCRONA coated

HSS-Co PM

11,5 mm

53 mm

63 mm

PROMAT

4

12 mm

110 mm

DIN 1835 B

12 mm

DIN 844

HR

4000866076

ALCRONA coated

HSS-Co PM

15 mm

63 mm

73 mm

PROMAT

4

16 mm

123 mm

DIN 1835 B

16 mm

DIN 844

HR

4000866077

ALCRONA coated

HSS-Co PM

19 mm

75 mm

89 mm

PROMAT

4

20 mm

141 mm

DIN 1835 B

20 mm

DIN 844

HR

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