Changsha Drilling Machinery CO., LTD

Contact Us

Name: Perry Tan
Tel: 0086-731-84077805
Fax: 0086-731-84072772
E-mail: csdrillingtools@vip.126.com
E-mail: info@csdrillingtools.com
Add: 5# Panpan road, economic development zone, Changsha, Hunan, China. Zip 410100
Skype: csdrillingtools
QQ: 2522716948
Skype: csdrillingtools QQ: 2522716948 csdrillingtools@vip.126.com info@csdrillingtools.com

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Metric design
 Metric design

Size

Design

Hole diameter

Core diameter

mm

in

mm

in

46

TT

46.5

1.82

35.3

1.39

T2

31.7

1.25

B

31.7

1.25

56

TT

56.5

2.22

45.2

1.78

T2

41.7

1.61

B

41.7

1.64

66

T2

66.5

2.61

51.7

2.04

B

51.7

2.04

76

T2

76.5

3.0

61.7

2.43

T6

57.0

2.24

T6s

47.7

1.88

B

61.7

2.43

86

T2

86.6

3.4

71.7

2.82

T6

67.0

2.64

T6s

57.7

2.27

B

71.7

2.82

101

T2

101,5

3.99

83,7

3.3

T6

79,0

3.11

T6s

71,7

2.82

B

86,7

3.41

116

T6

116,5

4.58

93,0

3.66

T6s

85,7

3.37

B

101,7

4.0

131

T6

131,5

5.17

108,0

4.25

T6s

100,7

3.96

B

116,7

4.56

146

T6

146,5

5.76

123,0

4.84

T6s

115,7

4.56

B

131,7

5.19