Twist Drill
AMERICAN STANDARD STRAIGHT SHANK TWIST DRILLS 90#~1#
Diameter of Drill | Flute Length | Overall Length | ||
Inch | No.or Ltr | Millimeter Equivalent | L2 | L1 |
mm | mm | |||
90 | 0.221 | 2 | 19 | |
89 | 0.231 | 2 | 19 | |
88 | 0.241 | 2 | 19 | |
87 | 0.254 | 2 | 19 | |
86 | 0.267 | 2.5 | 19 | |
85 | 0.280 | 2.5 | 19 | |
84 | 0.292 | 2.5 | 19 | |
83 | 0.305 | 2.5 | 19 | |
82 | 0.318 | 2.5 | 19 | |
81 | 0.33 | 2.5 | 19 | |
80 | 0.343 | 3 | 19 | |
79 | 0.368 | 3 | 19 | |
1/64 | 0.396 | 5 | 19 | |
0.400 | 5 | 19 | ||
78 | 0.406 | 5 | 22 | |
0.420 | 5 | 22 | ||
0.450 | 5 | 22 | ||
77 | 0.457 | 5 | 22 | |
0.480 | 5 | 22 | ||
0.550 | 5 | 22 | ||
76 | 0.508 | 5 | 22 | |
75 | 0.533 | 6 | 25 | |
0.550 | 6 | 25 | ||
74 | 0.572 | 6 | 25 | |
0.600 | 8 | 29 | ||
73 | 0.610 | 8 | 29 | |
72 | 0.635 | 8 | 29 | |
0.650 | 10 | 32 | ||
71 | 0.660 | 10 | 32 | |
0.700 | 10 | 32 | ||
70 | 0.711 | 10 | 32 | |
69 | 0.742 | 13 | 35 | |
0.750 | 13 | 35 | ||
68 | 0.787 | 13 | 35 | |
1/32 | 0.792 | 13 | 35 | |
0.800 | 13 | 35 | ||
67 | 0.813 | 13 | 35 | |
66 | 0.838 | 13 | 35 | |
0.850 | 16 | 38 | ||
65 | 0.889 | 16 | 38 | |
0.899 | 16 | 38 | ||
64 | 0.914 | 16 | 38 | |
63 | 0.940 | 16 | 38 | |
0.950 | 16 | 38 | ||
62 | 0.965 | 16 | 38 | |
61 | 0.991 | 17 | 41 | |
1.000 | 17 | 41 | ||
60 | 1.016 | 17 | 41 | |
59 | 1.041 | 17 | 41 | |
1.050 | 17 | 41 | ||
58 | 1.067 | 17 | 41 | |
57 | 1.092 | 19 | 44 | |
1.100 | 19 | 44 | ||
1.150 | 19 | 44 | ||
56 | 1.181 | 19 | 44 | |
3/64 | 1.191 | 19 | 44 | |
1.200 | 22 | 48 | ||
1.250 | 22 | 48 | ||
1.300 | 22 | 48 | ||
55 | 1.321 | 22 | 48 |
Diameter of Drill | Flute Length | Overall Length | ||
Inch | No.or Ltr | Millimeter Equivalent | L2 | L1 |
mm | mm | |||
1.350 | 22 | 48 | ||
54 | 1.397 | 22 | 48 | |
1.400 | 22 | 48 | ||
1.450 | 22 | 48 | ||
1.500 | 22 | 48 | ||
53 | 1.511 | 22 | 48 | |
1.550 | 22 | 48 | ||
1/15 | 1.588 | 22 | 48 | |
52 | 1.600 | 22 | 48 | |
1.613 | 22 | 48 | ||
1.650 | 25 | 51 | ||
1.700 | 25 | 51 | ||
51 | 1.702 | 25 | 51 | |
1.750 | 25 | 51 | ||
50 | 1.778 | 25 | 51 | |
1.800 | 25 | 51 | ||
1.850 | 25 | 51 | ||
49 | 1.859 | 25 | 51 | |
1.900 | 25 | 51 | ||
48 | 1.930 | 25 | 51 | |
1.950 | 25 | 51 | ||
5/64 | 1.984 | 25 | 51 | |
47 | 1.994 | 25 | 51 | |
2.000 | 25 | 51 | ||
2.050 | 29 | 54 | ||
46 | 2.057 | 29 | 54 | |
45 | 2.083 | 29 | 54 | |
2.100 | 29 | 54 | ||
2.150 | 29 | 54 | ||
44 | 2.184 | 29 | 54 | |
2.200 | 32 | 57 | ||
2.250 | 32 | 57 | ||
43 | 2.261 | 32 | 57 | |
2.300 | 32 | 57 | ||
2.350 | 32 | 57 | ||
42 | 2.375 | 32 | 57 | |
3/32 | 2.383 | 32 | 57 | |
2.400 | 35 | 60 | ||
41 | 2.438 | 35 | 60 | |
2.450 | 35 | 60 | ||
40 | 2.489 | 35 | 60 | |
2.500 | 35 | 60 | ||
39 | 2.527 | 35 | 60 | |
38 | 2.578 | 37 | 64 | |
2.600 | 37 | 64 | ||
37 | 2.642 | 37 | 64 | |
2.700 | 37 | 64 | ||
36 | 2.705 | 37 | 64 | |
7/64 | 2.779 | 38 | 67 | |
35 | 2.794 | 38 | 67 | |
2.800 | 38 | 67 | ||
34 | 2.819 | 38 | 67 | |
33 | 2.870 | 38 | 67 | |
2.900 | 41 | 70 | ||
32 | 2.946 | 41 | 70 | |
3.000 | 41 | 70 | ||
31 | 3.048 | 41 | 70 | |
3.100 | 41 | 70 | ||
1/8 | 3.175 | 41 | 70 | |
3.200 | 41 | 70 |
Diameter of Drill | Flute Length | Overall Length | ||
Inch | No.or Ltr | Millimeter Equivalent | L2 | L1 |
mm | mm | |||
30 | 3.264 | 41 | 70 | |
3.300 | 44 | 73 | ||
3.400 | 44 | 73 | ||
29 | 3.454 | 44 | 73 | |
3.500 | 44 | 73 | ||
28 | 3.569 | 44 | 73 | |
9/64 | 3.571 | 44 | 73 | |
3.600 | 48 | 76 | ||
27 | 3.658 | 48 | 76 | |
3.700 | 48 | 76 | ||
26 | 3.734 | 48 | 76 | |
25 | 3.797 | 48 | 76 | |
3.800 | 48 | 76 | ||
24 | 3.861 | 51 | 79 | |
3.900 | 51 | 79 | ||
23 | 3.912 | 51 | 79 | |
5/32 | 3.967 | 51 | 79 | |
22 | 3.988 | 51 | 79 | |
4.000 | 54 | 83 | ||
21 | 4.039 | 54 | 83 | |
20 | 4.089 | 54 | 83 | |
4.100 | 54 | 83 | ||
4.200 | 54 | 83 | ||
19 | 4.216 | 54 | 83 | |
4.300 | 54 | 83 | ||
18 | 4.305 | 54 | 83 | |
11/64 | 4.366 | 54 | 83 | |
17 | 4.394 | 56 | 86 | |
4.400 | 56 | 86 | ||
16 | 4.496 | 56 | 86 | |
4.500 | 56 | 86 | ||
15 | 4.572 | 56 | 86 | |
4.600 | 56 | 86 | ||
14 | 4.632 | 56 | 86 | |
13 | 4.700 | 59 | 89 | |
3/16 | 4.762 | 59 | 89 | |
12 | 4.800 | 59 | 89 | |
11 | 4.851 | 59 | 89 | |
4.900 | 62 | 92 | ||
10 | 4.915 | 62 | 92 | |
9 | 4.978 | 62 | 92 | |
5.000 | 62 | 92 | ||
8 | 5.045 | 62 | 92 | |
5.100 | 62 | 92 | ||
7 | 5.105 | 62 | 92 | |
13/64 | 5.159 | 62 | 92 | |
6 | 5.182 | 64 | 95 | |
5.200 | 64 | 95 | ||
5 | 5.220 | 64 | 95 | |
5.300 | 64 | 95 | ||
4 | 5.309 | 64 | 95 | |
5.400 | 64 | 95 | ||
3 | 5.410 | 64 | 95 | |
5.500 | 64 | 95 | ||
7/32 | 5.558 | 64 | 95 | |
5.600 | 67 | 98 | ||
2 | 5.613 | 67 | 98 | |
5.700 | 67 | 98 | ||
1 | 5.791 | 67 | 98 |