Decimal Millimeter Equivalents Of Drill Sizes - Piper Navajo Chieftain PA-31-350 Service Manual

NAVAJO CHIEFTAIN SERVICE MANUAL
TABLE II-IX. DECIMAL, MILLIMETER EQUIVALENTS OF DRILL SIZES
Decimal Millimeter Equivalents of Drill Sizes From 1/2" to No 80
Size Decimal Millimeter
Size Decimal Millimeter
Equiv Equiv
Equiv Equiv
Size Decimal Millimeter
Equiv Equiv
Size Decimal
Millimeter
Equiv Equiv
1 2
31 64
15 32
29/64
7 16
27 64
Z
1332
Y
X
25 64
W
V
38
U
0500
0 4843
04687
0 4531
0 4375
04218
0413
0 4062
0404
0 397
0 3906
0 386
0 377
0 375
0 368
12 7000
12 3031
11 9062
11 5094
11 1125
10 7156
10 4902
103187
102616
10 0838
99212
9 8044
9 5758
9 5250
9 3472
G 0261
F 0257
E.1 4 0250
D 0246
C 0242
B 0238
15 64 0 2343
A 0234
1 0 228
2 0221
7 32 02187
3 0213
4 0209
5 0 2055
6 0204
6 6294
6 5278
6 3500
6 2484
6 1468
6 0452
5 9531
5 9436
5 7912
56134
5 32
23
24
25
26
27
9 64
28
29
30
01562
0154
0152
01495
0 147
0144
01406
0 1405
0136
01285
0125
0 120
0116
0113
0111
3 9687
39116
3 8608
3 7973
3 7338
3 6576
35719
3 5687
3 4544
3 2639
51 0067
52 00635
1/16 00625
53 0 0595
54 0055
55
3/64
56
57
58
0052
0 0468
00465
0043
0042
1 7018
1 6129
1 5875
1 5113
1 397
1 3208
11906
1 1811
1 0922
1 0668
1 0414
1016
0 9906
09652
0 9398
5 5562
54102
5 3086
5 2197
5 1816
1 8
31
32
33
34
31750
3.048
2 9464
2 8702
2 8194
59 0041
60 0040
61 0039
62 0038
63 0 037
23 64 0 3593
T 0358
S 0346
11 32 0 3437
R 0339
9 1262
9 1281
8 7884
8 7300
8 6106
13 64 0 2031
7 0201
8 0199
9 0196
10 01935
5 1594
51054
5 0546
4 9784
49149
35 0110
7 64 01093
36 0 1065
37 0104
38 01015
2 794
2 7781
2 7051
26416
2 5781
64 0 036
65 0 035
66 0033
1 32 00312
67 0032
09144
0 899
0 8382
0 7937
0 8128
Q 0332
21 64 0 3281
P 0323
0 0316
5 16
03125
8 4328
8 3337
8 2042
8 0264
7 9375
11 0191
12 0189
3 16 01875
13
0185
14 0182
48514
48006
47625
4699
46228
39 0 0995
40 0098
41 0096
3 32 0 0937
42 00935
2.5273
24892
2 4384
2 3812
2 3749
68 0031
69 0029
70 0 028
71 0026
72 0025
0 7874
0 7366
07112
0 6604
0635
N 0 302
19 64 0 2968
M
0295
L 0 290
9 32 02812
7 6708
7 5387
7 4930
7 3660
7 1425
15 0 180
16 0177
17 0173
11 64 01718
18 01695
4572
44958
4 3942
43656
43053
43 0089
44
0086
45 0082
46 0081
47 00785
2 2606
2 1844
2 0828
2 0574
1 9939
73 0 024
74
00229
75 0021
76 0 020
77 0018
0 6096
0 58166
0 5334
0 508
04572
K 0281
J 0277
I 0272
H 0 266
17 64 0 2656
7 1374
7 0358
69088
6 7564
6 7462
19 0166
20 0161
21 0159
22 0157
4 2164
40894
4 0386
3 9878
5 64
48
49
50
00781
0 076
0073
0 070
1 9844
1 9304
1 8542
1 778
1 64 00156
78 0016
79 00145
80 00135
0 3969
04064
0 3683
03429
DRILL SIZES AVAILABLE
Drill may be obtained in regular sizes to a 4 inch diameter. and increase n 64ths of an inch
The regular metric drills vary from 2 to 76mm and increase in 0 5mm variations.
Reissued: 9/23/80
HANDLING AND SERVICING
1D5