¡îTwist Drill ¡îMasonry Drills ¡îWood Working Drill ¡îCombination Drills Set
HCS Straight Shank Twist Drills 90#¡«1#
Diameter of Drill Flute Length Overall Length
Inch No or Ltr Millimeter Equivalent L2 L1
mm mm

 

 

 

 



1/64



 

 

 

 

 

 

1/32

 

 




 

 

 

 


3/64

 90
89
88
87
86
85
84
83
82
81
80
79


78


77


76
75

74

73
72

71

70
69

68


67
66

65

64
63

62
61

60
59

58
57


56




55 		0.221
0.231
0.241
0.254
0.267
0.280
0.292
0.305
0.318
0.33
0.343
0.368
0.396
0.400
0.406
0.420
0.450
0.457
0.480
0.550
0.508
0.533
0.550
0.572
0.600
0.610
0.635
0.650
0.660
0.700
0.711
0.742
0.750
0.787
0.792
0.800
0.813
0.838
0.850
0.889
0.899
0.914
0.940
0.950
0.965
0.991
1.000
1.016
1.041
1.050
1.067
1.092
1.100
1.150
1.181
1.191
1.200
1.250
1.300
1.321		 2
2
2
2
2.5
2.5
2.5
2.5
2.5
2.5
3
3
5
5
5
5
5
5
5
5
5
6
6
6
8
8
8
10
10
10
10
13
13
13
13
13
13
13
16
16
16
16
16
16
16
17
17
17
17
17
17
19
19
19
19
19
22
22
22
22		 19
19
19
19
19
19
19
19
19
19
19
19
19
19
22
22
22
22
22
22
22
25
25
25
29
29
29
32
32
32
32
35
35
35
35
35
35
35
38
38
38
38
38
38
38
41
41
41
41
41
41
44
44
44
44
44
48
48
48
48
Diameter of Drill Flute Length Overall Length
Inch NO or Ltr Millimeter Equivalent L2 L1
mm mm

 

 


1/15

 

 

 

 



5/64

 

 

 

 

 

 

3/32

 

 

 

 


7/64

 

 

 

1/8


54


53


52

51

50


49

48


47


46
45


44


43


42


41

40

39
38

37

36

35

34
33

32

31

1.350
1.397
1.400
1.450
1.500
1.511
1.550
1.588
1.600
1.613
1.650
1.700
1.702
1.750
1.778
1.800
1.850
1.859
1.900
1.930
1.950
1.984
1.994
2.000
2.050
2.057
2.083
2.100
2.150
2.184
2.200
2.250
2.261
2.300
2.350
2.375
2.383
2.400
2.438
2.450
2.489
2.500
2.527
2.578
2.600
2.642
2.700
2.705
2.779
2.794
2.800
2.819
2.870
2.900
2.946
3.000
3.048
3.100
3.175
3.200

22
22
22
22
22
22
22
22
22
22
25
25
25
25
25
25
25
25
25
25
25
25
25
25
29
29
29
29
29
29
32
32
32
32
32
32
32
35
35
35
35
35
35
37
37
37
37
37
38
38
38
38
38
41
41
41
41
41
41
41

48
48
48
48
48
48
48
48
48
48
51
51
51
51
51
51
51
51
51
51
51
51
51
51
54
54
54
54
54
54
57
57
57
57
57
57
57
60
60
60
60
60
60
64
64
64
64
64
67
67
67
67
67
70
70
70
70
70
70
70
Diameter of Drill Flute Length Overall Length
Inch No or Ltr Millimeter Equivalent L2 L1
mm mm

 

 

9/64

 

 

 

5/32

 

 

 

 

11/64

 

 

 

3/16

 

 

 

13/64

 

 

 

7/32

 

30

29

28


27

26
25

24

23

22

21
20

19

18

17

16

15

14
13

12
11

10
9

8

7

6

5

4

3

2

1

3.264
3.300
3.400
3.454
3.500
3.569
3.571
3.600
3.658
3.700
3.734
3.797
3.800
3.861
3.900
3.912
3.967
3.988
4.000
4.039
4.089
4.100
4.200
4.216
4.300
4.305
4.366
4.394
4.400
4.496
4.500
4.572
4.600
4.632
4.700
4.762
4.800
4.851
4.900
4.915
4.978
5.000
5.045
5.100
5.105
5.159
5.182
5.200
5.220
5.300
5.309
5.400
5.410
5.500
5.558
5.600
5.613
5.700
5.791

41
44
44
44
44
44
44
48
48
48
48
48
48
51
51
51
51
51
54
54
54
54
54
54
54
54
54
56
56
56
56
56
56
56
59
59
59
59
62
62
62
62
62
62
62
62
64
64
64
64
64
64
64
64
64
67
67
67
67

70
73
73
73
73
73
73
76
76
76
76
76
76
79
79
79
79
79
83
83
83
83
83
83
83
83
83
86
86
86
86
86
86
86
89
89
89
89
92
92
92
92
92
92
92
92
95
95
95
95
95
95
95
95
95
98
98
98
98

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