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Drilling tools

71

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Centre drill

Design: DIN 333-A, 60° countersink angle. Profile ground ∅ tolerance: ∅ 1.0–2.5 = + 0.14 mm ∅ 3.15–5.0 = + 0.18 mm ∅ 6.3 = + 0.22 mm Application: Standard centre drill for producing centre holes according to DIN 332, sheet 1, form A (protective countersinking).

60°

DIN 333-A

Cutting Tools 1

l

1

2

d

1

60°

d

1120

HSS, bright surface, right cutting

HSS

Bright

1120

bright

1121

HSS, bright surface, right cutting

HSS

Bright

1121

bright

1123

HSS, TiAIN coated surface, right cutting.

HSS

TiN

1123 TiN

1126

HSS, Co5, bright surface, right cutting.

HSS Co5

Bright

1126

bright

1130

HSS bright surface, left cutting

HSS

Bright

1130

bright

1131

HSS, TiAIN coated surface, right cutting.

HSS

TiN

1131 TiN

Steels up to 850 N/mm 2

Steels up to 1000 N/mm 2

Steels up to 1400 N/mm 2

Hard machining over 60 HRC

Ti steels, Ti alloys, special steels

Stainless and acid- resistant steels (INOX)

Steels up to 42 HRC

Steels up to 52 HRC

Steels up to 56 HRC

Steels up to 60 HRC

Copper, brass, bronze

Cast iron materials

Al, Al and Mg alloys

Order No. 1120 1121 1123 1126 1130 1131

12 12 20 12 12 20

45 30 40 50 30 40

45 60 60 50 60 90

10 10 10 10 10 10

20 20 25 22 20 25

6

10

10 10 10 10

3 5 3 5

8 6

10

6WHHOV XSWR

1120

1121

1123

1126

1130

1131

Drill ∅ d 1 k12 mm

Order No.

Shank ∅ d 2 h8 mm l 1 mm For work- piece ∅ mm 1PP f mm/rev

PU

bright

bright

TiN

bright

bright

TiN

0050 0080 0100 0125 0160 0200 0250 0315 0400 0500 0630 0800

0.50* 0.80* 1.00 1.25 1.60 2.00 2.50 3.15 4.00 5.00 6.30 8.00

– –

8.10 7.85 7.20 8.40 7.20 6.85 8.10

– –

– –

12.40 12.25 11.55 13.35 10.55 12.45 12.90 17.30 22.30 36.00 64.10

19.80 19.45 16.95 19.45 15.80 16.60 19.45 23.40 38.20 55.40 85.80

10 3.15 25.0

> 4

0.02

10 3.15 25.0 4– 6 0.02 10 3.15 31.5 6– 8 0.02 10 3.15 31.5 8– 10 0.02 10 4.00 35.5 10– 15 0.02 10 5.00 40.0 15– 20 0.03 10 6.30 45.0 20– 30 0.03 10 8.00 50.0 30– 40 0.04 10 10.00 56.0 40– 63 0.05 1 12.50 63.0 63–100 0.07 1 16.00 71.0 100–150 0.09 1 20.00 80.0 150–250 0.10 1 25.00 100.0 < 250 0.12 1 31.50 125.0 < 250 0.12

2.43 2.43 2.55 2.90 3.40 4.38 6.25 8.70

7.80 7.80 8.05 8.25 9.05

3.92

–

3.86 4.70 5.40 6.45 8.95

11.50 10.25 16.60 12.15

23.40 34.20 54.00

– – – – –

15.35 19.55

14.20 22.00

– – –

92.20 133.50

1000 10.00 1250 12.50

46.50 108.00

200.50 305.50

– –

–

–

* Single-sided cutting

(W106)

(W101)

(W106)

(W106)

(W101)

(W101)

1/53

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