AVG
Diameter

No. of Teeth

Point
Width
P_W

Body
Distance
K

Taper-bore
diameter
D

Taper

Cutting
depth

3.5″

8

84.57～93.1

37.306

25.4

1∶12

8

4.5″

8

108.2～119.5

48.674

25.4

1∶12

9.5

5″

8

121.39～130.89

55.024

25.4

1∶12

9.5

6″

12

146.79～156.29

67.724

58.196

1∶24

12.7

7.5″

12

165.58～180.08

74.48

58.196

1∶24

12.7

179.28～192.78

80.83

190.98～205.48

87.18

9″

12

203.68～218.18

93.53

58.196

1∶24

14.2

16

210.03～224.53

96.705

222.73～237.23

103.055

232.89～247.39

108.135

245.59～260.09

114.485

12″

16

263.11～281.61

122.43

126.96

1∶24

19.4

20

278.35～296.85

130.05

296.13～314.63

138.94

311.37～329.87

146.56

16″

24

378.95～410.45

180.35

126.96

1∶24

25.4

396.73～419.23

189.24

411.97～434.47

196.86

18″

24

428.728～457.228

205.524

215.8

—

25.4

440.404～468.904

211.362

449.04～477.54

215.68

21″

28

500.704～529.204

241.512

215.8

—

34

513.404～541.94

247.862

523.564～552.064

252.942