HSS DRILL - HSS Center Drill

Brand Name:WXM
Minimum Order Quantity:100pcs
Delivery Time:30days
Payment Terms:T/T 50%at first,50%before the goods delivered
Place of Origin:China
Packaging Details:paper bag packing or plastic tube packing or absorbing clip packing
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Address: 943 MINGZHU INDUSTRY AREA,YUYAO ,ZHEJIANG,CHINA
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ZEC TOOLS-HSS Center Drills
1.Center drills are used with the lathe to drill a hole in the end of stock for mounting between centers in the lathe.
2.They are designed to drill a small diameter pilot hole followed by a 60 degree countersink that provides a bearing surface for the 60 degree point of the lathe center.
3.Center drill are also used extensively with the milling machine to accurately start holes.
4.The hole locations can be dialed in using the milling machine's calibrated hand wheels, then the hole is started using the center drill.
5.The large diameter shank on the center drill holds the drill point right on center, 6.Once the hole is started, the center drill is replaced with a drill of the desired diameter and the hole is finished.
7.It is imperative hat a cutting lubricant is used, and the center drill is backed off several times to prevent the tip from twisting off.


Item No:
17HC0001

ZEC TOOLS can make Metric HSS center drills according to DIN333 and fractional center drills according to ANSI. Most of them are made of HSS or HSS-E, few of them are made of carbide for special purpose.


*. DIN333 HSS Center Drills
Manufacturing process: fully ground
Material: M2 Flutes: straight flutes, spiral flutes
Finish: Bright, TiN
Diameter: 1.00-12.5mm

Type A

Ød

Ød1

L

I

mm

mm

mm

mm

1,00

3,15

31,50

1,60

1,25

3,15

33,50

1,90

1,60

4,00

37,50

2,40

2,00

5,00

42,00

2,90

2,50

6,30

47,00

3,60

3,15

8,00

52,00

4,40

4,00

10,00

59,00

5,60

5,00

12,50

66,00

6,90

6,30

16,00

74,00

8,60

10,00

25,00

100,00

13,70

12,50

31,50

125,00

17,90

Type B

Ød

Ød1

L

L

mm

mm=R0

mm

mm

1,00

3,15

37,50

3,00

1,25

3,15

31,50

3,35

1,60

4,00

37,50

4,25

2,00

5,00

42,00

5,30

2,50

6,30

47,00

6,70

3,15

8,00

52,00

8,50

4,00

10,00

56,00

10,60

5,00

12,50

66,00

13,20

6,30

16,00

74,00

17,00

8,00

20,00

80,00

21,20

10,00

25,00

100,00

31,50

12,50

31,50

125,00

33,50

* ISO866/ISO2540 HSS Center Drills
Manufacturing process: fully ground
Flute type: N
Material: HSS or HSS-Co
Finish: bright, TiN
Diameter: 1-10mm

Type A

D

d

FL

OAL

mm

mm

mm

mm

1

3.15

1.3

31.5

1

3.15

1.3

.(100)

1

3.15

1.3

.(150)

1

4

1.3

35.5

1.25

3.15

1.6

31.5

1.25

5

1.6

40

1.6

4

2

35.5

1.6

4

2

.(100)

1.6

4

2

.(150)

1.6

6.3

2

45

2

5

2.5

40

2

5

2.5

.(100)

2

5

2.5

.(150)

2

8

2.5

50

2.5

6.3

3.1

45

2.5

6.3

3.1

.(100)

2.5

6.3

3.1

.(150)

2.5

10

3.1

56

3.15

8

3.9

50

3.15

8

3.9

.(100)

3.15

8

3.9

.(150)

3.15

11.2

3.9

60

4

10

5

56

4

10

5

.(100)

4

10

5

.(150)

4

14

5

65

5

12.5

6.3

63

5

18

6.3

75

6.3

16

0.3

71

6.3

20

8

80

8

20

8

80

8

25

10.1

100

10

25

10.1

100

10

31.5

12.8

125

Type B

D

Dec. Equiv.

Body Diameter

FL

OAL

mm

mm

mm

mm

mm

1

4

1.3

35.5

2.12

1.25

5

1.6

40

2.65

1.6

6.3

2

45

3.35

2

8

2.5

50

4.25

2.5

10

3.1

56

5.3

3.15

11.2

3.9

60

6.7

4

14

5

65

8.5

5

18

6.3

75

10.6

6.3

20

81

80

13.2

8

25

0.1

100

17

10

31.5

12.8

125

21.2


*. ANSI HSS Center Drills
Manufacturing process: fully ground
Flute type: N
Material: HSS or HSS-Co
Finish: bright, TiN
Diameter: 1/32-5/16inch
Plain type-Standard length

 

Dec. Equiv.

Body Diameter

FL

OAL

D

Dec. Equiv.

Body Diameter

FL

OAL

1/32

0.0313

1/8

3/79

1 1/8

3/16

0.1875

7/16

3/16

2 3/4

3/64

0.0469

1/8

3/64

1 1/4

7/32

0.2188

1/2

7/32

3

5/64

0.0781

3/16

5/64

1 7/8

1/4

0.25

5/8

1/4

3 1/4

7/64

0.1094

1/4

7/64

2

5/16

0.3125

3/4

5/16

3 1/2

1/8

0.125

5/16

1/8

2 1/8

 

 

 

 

 


Plain type-Long length

D

Dec. Equiv.

Body Diameter

FL

OAL

D

Dec. Equiv.

Body Diameter

FL

OAL

3/64

0.125

1/8

3/64

3

1/8

0.3125

5/16

1/8

5

3/64

0.125

1/8

3/64

4

1/8

0.3125

5/16

1/8

6

5/64

0.1875

3/16

5/64

4

3/16

0.4375

7/16

3/16

5

5/64

0.1875

3/16

5/64

5

3/16

0.4375

7/16

3/16

6

7/64

0.25

1/4

7/64

4

7/32

0.5

1/2

7/32

6

7/64

0.25

1/4

7/64

5

7/32

0.5

1/2

7/32

6

1/8

0.3125

5/16

1/8

4

1/4

0.625

5/8

1/4

6

 

 

 

 

 

5/16

0.75

3/4

5/16

6


Bell type

D

Dec. Equiv.

Body Diameter

FL

OAL

D

Dec. Equiv.

Body Diameter

FL

OAL

3/64

0.125

1/8

3/64

1 1/4

3/16

0.4375

7/16

3/16

2 3/4

5/64

0.1875

3/16

5/64

1 7/8

7/32

0.5

1/2

7/32

3

7/64

0.25

1/4

7/64

2

1/4

0.625

5/8

1/4

3 1/4

1/8

0.3125

5/16

1/8

2 1/8

5/16

0.75

3/4

5/16

3 1/2


Note: Any other sizes are demanded, please kindly contact with us directly, many thanks!

China HSS DRILL - HSS Center Drill supplier

HSS DRILL - HSS Center Drill

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