Machinery's Handbook, 31st Edition
Milling Cutters 889 American National Standard Plain- and Ball-End, Heavy-Duty, Medium Helix, Single- End End Mills with 2-Inch Diameter Shanks ANSI/ASME B94.19-1997 (R2019)
L
W
Two
Four
Six
2 ”
D
C
L
W
Two
Three
2 ”
D
Four
Six
Ball End
Plain End
Dia., C and D
No. of Flutes
No. of Flutes
W
L
W … …
L
… …
… …
2, 4, 6
2 2 2 2 2 2
2 3 4 6 8 4 6 8
5 3 ⁄ 4 6 3 ⁄ 4 7 3 ⁄ 4 … 9 3 ⁄ 4 7 3 ⁄ 4 … 9 3 ⁄ 4 11 3 ⁄ 4
2, 3
2, 3, 4, 6
4 5 6 8
6
7 3 ⁄ 4 8 3 ⁄ 4 9 3 ⁄ 4
…
…
2, 4
2, 3, 4, 6
6 6
6
11 3 ⁄ 4
2, 3, 4, 6
…
…
…
2 1 ⁄ 2 2 1 ⁄ 2 2 1 ⁄ 2 2 1 ⁄ 2
…
…
5
4
8 3 ⁄ 4 …
2, 4, 6
… …
…
11 3 ⁄ 4 … All dimensions are in inches. All cutters are high-speed steel. Right-hand cutters with right-hand helix are standard. Helix angle is greater than 19 degrees but not more than 39 degrees. Tolerances: On C and D, + 0.005 inch for 2, 3, 4 and 6 flutes: on W , ± 1 ⁄ 16 inch; and on L , ± 1 ⁄ 16 inch. Dimensions of American National Standard Weldon Shanks ANSI/ASME B94.19-1997 (R2019) Shank Flat Shank Flat Dia. Length X a Length b Dia. Length X a Length b 3 ⁄ 8 1 9 ⁄ 16 0.325 0.280 1 2 9 ⁄ 32 0.925 0.515 1 ⁄ 2 1 25 ⁄ 32 0.440 0.330 1 1 ⁄ 4 2 9 ⁄ 32 1.156 0.515 5 ⁄ 8 1 29 ⁄ 32 0.560 0.400 1 1 ⁄ 2 2 11 ⁄ 16 1.406 0.515 3 ⁄ 4 2 1 ⁄ 32 0.675 0.455 2 3 1 ⁄ 4 1.900 0.700 7 ⁄ 8 2 1 ⁄ 32 0.810 0.455 2 1 ⁄ 2 3 1 ⁄ 2 2.400 0.700 a X is distance from bottom of flat to opposite side of shank. b Minimum. All dimensions are in inches. Centerline of flat is at half-length of shank except for 1 1 ⁄ 2 -, 2- and 2 1 ⁄ 2 -inch shanks where it is 1 3 ⁄ 16 , 1 27 ⁄ 32 and 1 15 ⁄ 16 from shank end, respectively. Tolerance on shank diameter, - 0.0001 to - 0.0005 inch. 6 …
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