Drill Type

Bit Diameter

Buttons

Taper

Water Hole

Thread

Part No.

mm

in

thick×hight

Cross Type Bits

38

1 1/2"

6∼8×12

3

25R

S138-25R

42

1 21/32"

6∼8×12

3

25R

S142-25R

45

1 49/64"

6∼8×12∼14

3

25R

S145-25R

48

1 57/64"

6∼8×12∼14

3

25R

S148-25R

51

2"

6∼8×12∼14

3

25R

S151-25R

42

1 21/32"

6∼8×12

3

28R

S142-28R

45

1 49/64"

6∼8×12∼14

3

28R

S145-28R

48

1 57/64"

6∼8×12∼14

5

28R

S148-28R

51

2"

6∼8×12∼14

3

28R

S151-28R

54

2 1/8"

6∼8×12∼14

3

28R

S154-28R

65

2 14/25"

6∼10×12∼16

3

28R

S165-28R

Cross Type Bits

51

2"

6∼8×12∼14

3

32R

S151-32R

54

2 1/8"

6∼8×12∼14

3

32R

S154-32R

65

2 14/25"

6∼10×12∼16

3

32R

S165-32R

76

3"

11×20

5

38T

S176-38T

X Bits

64

2 33/64"

11×20

5

38R

X164-38R

64

2 33/64"

11×20

5

38T

X164-38T

76

3"

11×20

5

38T

X176-38T

89

3 1/2"

12×16

5

45T

X189-45T