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Drills
(Taper Shank Twist Drills (inch System))


Standard No:ANSI B 9411
Material: H.S.S
Diameter
d
Overall Length
L
Flute Length
l
M.T.
NO.
1/4 6-1/8 2-7/8 1
17/64 6-1/4 3"
9/32
19/64 6-3/8 3-1/8
5/16
21/64 6-1/2 3-1/4
11/32
23/64 6-3/4 3-1/2
3/8
25/64 7" 3-5/8
13/32
27/64 7-1/4 3-7/8
7/16
29/64 7-1/2 4-1/8
15/32
31/64 8-1/4 4-3/8 2
1/2
33/64 8-1/2 4-5/8
17/32
35/64 8-3/4 4-7/8
9/16
37/64
19/32
39/64
5/8
41/64 9" 5-1/8
21/32
43/64 9-1/4 5-3/8
11/16
45/64 9-1/2 5-5/8
23/32
47/64 9-3/4 5-7/8
3/4
49/64 9-7/8 6"
25/32
51/64 10-3/4 6-1/8 3
13/16
53/64
27/32
55/64
7/8
57/64
29/32
59/64
15/16
61/64 11" 6-3/8
31/32
63/64
1"
1-1/64 11-1/8 6-1/2
1-1/32
1-3/64 11-1/4 6-5/8
1-1/16
1-5/64 12-1/2 6-7/8 4
1-3/32
1-7/64 12-3/4 7-1/8
1-1/8
1-9/64 12-7/8 7-1/4
1-5/32
1-11/64 13" 7-3/8
1-3/16
1-13/64 13-1/8 7-1/2
1-7/32
1-15/64 13-1/2 7-7/8
1-1/4
1-17/64 14-1/8 8-1/2
1-9/32
1-19/64 14-1/4 8-5/8
1-5/16
1-21/64 14-3/8 8-3/4
1-11/32
1-23/64 14-1/2 8-7/8
1-3/8
1-25/64 14-5/8 9"
1-13/32
1-27/64 14-3/4 9-1/8
1-7/16
1-29/64 14-7/8 9-1/4
1-15/32
1-31/64 15" 9-3/8
1-1/2
1-33/64 16-3/8
1-17/32
1-35/64 16-5/8 9-5/8
1-9/16
1-37/64 16-7/8 9-7/8
1-19/32
1-39/64 17" 10"
1-5/8
1-41/64 17-1/8 10-1/8
1-21/32
1-43/64
1-11/16
1-45/64
1-23/32
1-47/64
1-3/4
1-25/32
1-13/16
1-27/32
1-7/8 17-3/8 10-3/8
1-29/32
1-15/16
1-31/32
2"
2-1/16 10-1/4 5
2-1/8
2-3/16
2-1/4 10-1/8
2-5/16
2-3/8
Note: The diameter of this item with ground flute is up to &Oslash1" as special orders

 


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