NAKAJIMAKOUKI Centering/Countersink（work material：Copper）

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Center Drill, Okabe Standard, Type 1, G Coating 60°

NAKAJIMAKOUKI

Because it is made of high-speed steel, it has a high hardness. It is a centre drill made with one of the best heat treatments, making it suitable for machining general steel, stainless steel, cast iron and aluminium.

Volume Discount

Starting from^∗ ：	32.96 €
Min. Shipping Days ：	5 Days

*Unit price with basic configuration

Center Drill, Okabe Standard, Type 1, Carbide 60°

NAKAJIMAKOUKI

As it is made of carbide, it has both high hardness and high elasticity. It is a centre drill made with one of the best heat treatments and can be used for machining general steel, heat-treated steel, stainless steel, cast iron, etc.

Starting from^∗ ：	117.72 €
Min. Shipping Days ：	6 Days

*Unit price with basic configuration

Center Drill, Okabe Standard, Type 1, Carbide 90°

NAKAJIMAKOUKI

Since it is made of carbide, it has high hardness and elasticity. It is a centre drill made with one of the best heat treatments and can be used for machining general steel, heat treated steel, stainless steel, cast iron, etc.

Starting from^∗ ：	103.52 €
Min. Shipping Days ：	7 Days

*Unit price with basic configuration


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Product Series
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Application
Tip angle (θ)
Tool Diameter (D)(mm)
work material
Single blade, two blades
Peripheral Blade Y/N
Tool Material Type
Coating Y/N
Coating Type
R Size (R)(mm)


Brand	NAKAJIMAKOUKI	NAKAJIMAKOUKI	NAKAJIMAKOUKI
Product Series	Center Drill, Okabe Standard, Type 1, G Coating 60°	Center Drill, Okabe Standard, Type 1, Carbide 60°	Center Drill, Okabe Standard, Type 1, Carbide 90°
Starting from^∗	32.96 € *Unit price with basic configuration Volume Discount	117.72 € *Unit price with basic configuration	103.52 € *Unit price with basic configuration
Min. Shipping Days ：	5 Days	6 Days	7 Days
Application	Centering (Positioning)	Centering (Positioning)	Centering (Positioning)
Tip angle (θ)	60	60	90
Tool Diameter (D)(mm)	0.3 ～ 6	0.3 ～ 6	0.3 ～ 6
work material	Copper[○]	Copper[◎]	Copper[◎]
Single blade, two blades	Double-edged	Single blade / Double-edged	Double-edged
Peripheral Blade Y/N	N/A	N/A	N/A
Tool Material Type	High-speed steel	Carbide	Carbide
Coating Y/N	Available	N/A	N/A
Coating Type	TiN	Non-Coated	Non-Coated
R Size (R)(mm)	-	-	-

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Application
- Centering (Positioning)
- Hole Chamfer
- Chamfering/Horizontal
- V Groove
- Drilling
- Other
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Tip angle (θ)
20

30

45

60

60°

60 × 120

80

90

90°

118

120

120°

125°
Drawing

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Tool Diameter (D)(mm)
0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.1

0.11

0.12

0.13

0.14

0.15

0.16

0.17

0.18

0.19

0.2

0.21

0.22

0.23

0.24

0.25

0.26

0.27

0.28

0.29

0.3

0.35

0.4

0.45

0.5

0.55

0.6

0.65

0.7

0.75

0.8

0.85

0.9

0.95

1

1.1

1.2

1.25

1.3

1.4

1.5

1.6

1.6～3.35

1.7

1.8

1.9

2.

2

2.1

2.2

2.3

2.4

2.5

2.5～5.3

2.6

2.7

2.8

2.9

3

3.1

3.15

3.2

3.5

3.8

4

4.3

5

5.3

5.8

6

6.3

6.3,8.3,10.4,12.4,16.5,20.5

6.30/8.30/10.40/12.40/16.50/20.50

6.3/8.3/10.4/12.4/16.5/20.5

6.35

7

7.3

7.7

8

8.3

9

9.4

9.52

10

10.4

11

11.2

11.5

12

12.4

12.5

12.7

13

13.4

14

14.4

15

15.87

16

16.5

18

18.5

19

19.05

20

20.5

21

22

22.5

23

25

25.0(+0.3)

25.4

26

27

28

30

31

31.5

32

34

35

36

37

40

45

46

50

55

60

63

65

70

75

80

90

95

100
Drawing

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work material
- General Steel
- Quenched and tempered steel
- High Hardness Steel
- Stainless Steel
- Cast Iron
- Aluminum
- Titanium
- Copper
- Graphite
- Resin
Details

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Single blade, two blades
- Single blade
- Double-edged
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Peripheral Blade Y/N
- Available
- N/A
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Tool Material Type
- High-speed steel
- Cobalt HSS
- Carbide
Details

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Coating Y/N
- Available
- N/A
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Coating Type
- TiAlN
- TiCN
- TiN
- DLC
- Non-Coated
- Other
Details

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R Size (R)(mm)
8
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