HSS Countersink Drill Bits

• Customization: Available
• Customized: Customized
• Standard: DIN, JIS, AISI
• Model NO.: metric and inch
• Length: Jobber-length
• Type: Countersink Drill Bit
• Material: High Speed Steel
• Usage: Metal Drilling
• Size: 1/8 to 3 Inch
• Standards: 64 HRC
• Transport Package: Plastic Tue. Wood Case.
• Specification: inch and metric
• Trademark: stc
• Origin: Zhenjiang Jiangsu
• HS Code: 82075090
• Production Capacity: 10000sets/Month

Product Description

Our 3 flute countersink are made from super quality high speed steel M2.

hss cobalt available upon request.

special black finish treatment can increas hardness to 64 hrc.

widely used in portable applications.

ANSI standard and DIN standard.

kinds of coating available.

kinds of kits (sets) available.
 

STC039, THREE FLUTES COUNTERSINKS,  Straight Shank

STC042, THREE-FLUTE CENTER REAMER, Straight Shank, American Style

Pict

Pict

DIN335C, 90° Angle.

Included Angle: 60°, 82°, 90°, 100°

60°, 82°, 120° Point Angle available also.

Max cut diameter

Shank Diameter

Overall Length

Max cut diameeter

Shank Diameter

Overall Length

Size

Shank Diameter

Overall Length

Size

Shank Diameter

Overall Length

1/4"

1/4"

1-1/2"

3/4"

1/2"

2-5/8"

4.3

4

40

10.4

6

50

3/8"

1/4"

1-3/4"

1"

1/2"

2-3/4"

5

4

40

11.5

8

56

1/2"

3/8"

2"

1-1/4"

3/4"

3"

5.3

4

40

12.4

8

56

5/8"

3/8"

2-1/4"

1-1/2"

3/4"

3"

6

5

45

13.4

8

56

6.3

5

45

15

10

60

STC042, 5-FLUTE COUNTERSINK, Straight Shank, American Style

7

6

50

16.5

10

60

7.3

6

50

19

10

63

8

6

50

20.5

10

63

Pict

8.3

6

50

23

10

67

9.4

6

50

25

10

67

10

6

50

31

12

71

Included Angle: 60°, 82°, 90°, 100°

Max cut diameter

Shank Diameter

Overall Length

Max cut diameter

Shank Diameter

Overall Length

STC041, THREE FLUTES COUNTERSINKS, Taper Shank

1/2"

1/2"

3-7/8"

1"

1/2"

4-3/8"

5/8"

1/2"

4"

1-1/4"

1/2"

5"

Pict

3/4"

1/2"

4-1/8"

1-1/2"

1/2"

5-3/8"

7/8"

1/2"

4-1/4"

STC044, HSS 6-FLUTE CHATTERLESS COUNTERSINK, 

Included Angle: 60°, 90°, 120°

Size

Morse Taper

Overall Length

Size

Morse Taper

Overall Length

Pict

15

1

85

31

2

112

16.5

1

85

34

2

117

19

2

100

37

2

118

Included Angle: 60°, 82°, 90°, 100°

20.5

2

100

40

3

140

Max cut diameter

Shank Diameter

Overall Length

Max cut diameter

Shank Diameter

Overall Length

23

2

106

50

3

150

25

2

106

63

4

180

3/16"

3/16"

1-1/2"

3/4"

1/2"

2-3/4"

26

2

106

80

4

190

1/4"

1/4"

2"

7/8"

1/2"

2-3/4"

28

2

112

100

4

200

5/16"

1/4"

2"

1"

1/2"

2-3/4"

30

2

112

3/8"

1/4"

2"

1-1/4"

3/4"

3-3/8"

1/2"

1/4"

2"

1-1/2"

3/4"

3-1/2"