3 Flute 90 Degree Carbide Countersink

• Customization: Available
• Customized: Customized
• Standard: DIN, JIS, AISI
• Model NO.: metric and inch
• Length: Jobber-length
• Type: Countersink Drill Bit
• Material: Solid Carbide
• Usage: Metal Drilling
• Flute Type: U
• Hardness: 90hra
• Transport Package: Plastic Box
• Specification: M1 to M120
• Trademark: stc
• Origin: China
• HS Code: 82075090
• Production Capacity: 3000PCS/Month

Product Description

STC046, HSS SOLID CAP SCREW COUNTERBORE, DIN373

3-Flute, Material: HSS, HSS-E.

Pict

Screw Size

Cutting Diameter

Pilot Diameter

Shank Diameter

Total Length

Flute Number

1

2.2

0.75

2.2

45

2

1.2

2.5

0.95

2.5

45

2

1.4

2.8

1.1

2.8

45

2

1.6

3.3

1.25

3.3

56

2

1.8

3.8

1.45

3.8

56

2

2

4.3

1.6

4.3

56

2

2.5

5

2.05

5

56

2

3

6

2.5

5

71

3

3.5

6.5

2.9

5

71

3

4

8

3.3

5

71

3

4.5

9

3.7

8

80

3

5

10

4.2

8

80

3

6

11

5

8

80

3

7

13

6

12.5

100

3

8

15

6.8

12.5

100

3

9

16

7.8

12.5

100

3

10

18

8.5

12.5

100

3

12

20

10.2

12.5

100

3

STC044-M, COUNTERSINKS, Straight Shank

GB/T 4258-2004, GOST 14953-80

Pict

Included Angle: 60°, 90°, 120°

Size

Small End Diameter

Shank Diameter

Size

Small End Diameter

Shank Diameter

8

1.6

8

16

3.2

10

10

2

8

20

4

10

12.5

2.5

8

25

7

10

STC044-MT, COUNTERSINKS, Taper Shank

GB/T 1143-2004, GOST 14953-80

Bitmap

Included Angle: 60°, 90°, 120°

Size

Small End Diameter

M.T. Shank

Size

Small End Diameter

M.T. Shank

16

3.2

1

40

12.5

3

20

4

2

50

16

3

25

7

2

63

20

4

31.5

9

2

80

25

4