PIPER AIRCRAFT
PA-32R-301/301T
MAINTENANCE MANUAL
91-00-00
Page 91-10
Reissued: July 1, 1993
4F1
Decimal/Millimeter Equivalents of Drill Sizes From 1/2” to No. 80
Size
Decimal Millimeter
Size
Decimal Millimeter
Size
Decimal
Millimeter
Size
Decimal Millimeter
Equiv.
Equiv.
Equiv.
Equiv.
Equiv.
Equiv.
Equiv.
Equiv.
1/2 0.500
12.7000
G
0.261
6.6294
5/32
0.1562
3.9687
51
0.067
1.7018
31/64 0.4843
12.3031
F
0.257
6.5278
23
0.154
3.9116
52
0.0635
1.6129
15/32 0.4687
11.9062
E-1/4
0.250
6.3500
24
0.152
3.8608
1/16
0.0625
1.5875
29/64 0.4531
11.5094
D
0.246
6.2484
25
0.1495
3.7973
53
0.0595
1.5113
7/16 0.4375
11.1125
C
0.242
6.1468
26
0.147
3.7338
54
0.055
1.397
27/64 0.4218
10.7156
B
0.238
6.0452
27
0.144
3.6576
55
0.052
1.3208
Z 0.413
10.4902
15/64
0.2343
5.9531
9/64
0.1406
3.5719
3/64
0.0468
1.1906
13/32 0.4062
10.3187
A
0.234
5.9436
28
0.1405
3.5687
56
0.0465
1.1811
Y 0.404
10.2616
1
0.228
5.7912
29
0.136
3.4544
57
0.043
1.0922
X 0.397
10.0838
2
0.221
5.6134
30
0.01285
3.2639
58
0.042
1.0668
25/64 0.3906
9.9212
7/32
0.2187
5.5562
1/8
0.125
3.1750
59
0.041
1.0414
W 0.386
9.8044
3
0.213
5.4102
31
0.120
3.048
60
0.040
1.016
V 0.377
9.5758
4
0.209
5.3086
32
0.116
2.9464
61
0.039
0.9906
3/8 0.375
9.5250
5
0.2055
5.2197
33
0.113
2.8702
62
0.038
0.9652
U 0.368
9.3472
6
0.204
5.1816
34
0.111
2.8194
63
0.037
0.9398
23/64 0.3593
9.1262
13/64
0.2031
5.1594
35
0.110
2.794
64
0.036
0.9144
T 0.358
9.1281
7
0.201
5.1054
7/64
0.1093
2.7781
65
0.035
0.899
S 0.346
8.7884
8
0.199
5.0546
36
0.1065
2.7051
66
0.033
0.8382
11/32 0.3437
8.7300
9
0.196
4.9784
37
0.104
2.6416
1/32
0.0312
0.7937
R 0.339
8.6106
10
0.1935
4.9149
38
0.1015
2.5781
67
0.032
0.8128
Q 0.332
8.4328
11
0.191
4.8514
39
0.0995
2.5273
68
0.031
0.7874
21/64 0.3281
8.3337
12
0.189
4.8006
40
0.098
2.4892
69
0.029
0.7366
P 0.323
8.2042
3/16
0.1875
4.7625
41
0.096
2.4384
70
0.028
0.7112
O 0.316
8.0264
13
0.185
4.699
3/32
0.0937
2.3812
71
0.026
0.6604
5/16 0.3125
7.9375
14
0.182
4.6228
42
0.0935
2.3749
72
0.025
0.635
N 0.302
7.6708
15
0.180
4.572
43
0.089
2.2606
73
0.024
0.0696
19/64 0.2968
7.5387
16
0.177
4.4958
44
0.086
2.1844
74
0.0229
0.58166
M 0.295
7.4930
17
0.173
4.3942
45
0.082
2.0828
75
0.021
0.5334
L 0.290
7.3660
11/64
0.1718
4.3656
46
0.081
2.0574
76
0.020
0.508
9/32 0.2812
7.1425
18
0.1695
4.3053
47
0.0785
1.9939
77
0.018
0.4572
K 0.281
7.1374
19
0.166
4.2164
5/64
0.0781
1.9844
1/64
0.0156
0.3969
J
0.277
7.0358
20
0.161
4.0894
48
0.076
1.9304
78
0.016
0.4064
I
0.272
6.9088
21
0.159
4.0386
49
0.073
1.8542
79
0.0145
0.3683
H 0.266
6.7564
22
0.157
3.9878
50
0.070
1.778
80
0.0135
0.3429
17/64 0.2656
6.7462
DRILL SIZES AVAILABLE
Drill may be obtained in regular sizes to a 4 inch diameter, and increase in 64ths of an
inch. The regular metric drills vary from 2 to 76mm and increase in 0.5mm variations.
CHART 4
CONVERSION TABLES
(Sheet 5 of 5)
Summary of Contents for PA-32R-301T SARATOGA S
Page 26: ...CHAPTER 4 AIRWORTHINESS LIMITATIONS 1C1 ...
Page 29: ...CHAPTER 5 TIME LIMITS MAINTENANCE CHECKS 1C4 ...
Page 53: ...CHAPTER 6 DIMENSIONS AND AREAS 1D6 ...
Page 64: ...CHAPTER 7 LIFTING AND SHORING 1D21 ...
Page 68: ...CHAPTER 8 LEVELING AND WEIGHING 1E1 ...
Page 72: ...CHAPTER 9 TOWING AND TAXIING 1E5 ...
Page 76: ...CHAPTER 10 PARKING AND MOORING 1E9 ...
Page 80: ...CHAPTER 11 REQUIRED PLACARDS 1E13 ...
Page 92: ...CHAPTER 12 SERVICING 1F1 ...
Page 126: ...CHAPTER 20 STANDARD PRACTICES AIRFRAME 1G17 ...
Page 127: ...THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 139: ...CHAPTER 21 ENVIRONMENTAL SYSTEMS 1H5 ...
Page 188: ...CHAPTER 22 AUTOFLIGHT 1J7 ...
Page 193: ...CHAPTER 23 COMMUNICATIONS 1J12 ...
Page 203: ...CHAPTER 24 ELECTRICAL POWER 1J22 ...
Page 263: ...CHAPTER 25 EQUIPMENT FURNISHINGS 2A13 ...
Page 269: ...CHAPTER 27 FLIGHT CONTROLS 2A20 ...
Page 332: ...CHAPTER 28 FUEL 2D11 ...
Page 363: ...CHAPTER 29 HYDRAULIC POWER 2E18 ...
Page 404: ...CHAPTER 30 ICE AND RAIN PROTECTION 2G16 ...
Page 470: ...CHAPTER 32 LANDING GEAR 3A13 ...
Page 550: ...CHAPTER 33 LIGHTS 3D24 ...
Page 562: ...CHAPTER 34 NAVIGATION AND PITOT STATIC 3E12 ...
Page 582: ...CHAPTER 35 OXYGEN 3F8 ...
Page 604: ...CHAPTER 37 VACUUM 3G6 ...
Page 616: ...CHAPTER 39 3G18 ELECTRIC ELECTRONIC PANELS MULTIPURPOSE PARTS ...
Page 620: ...CHAPTER 51 STRUCTURES 3G22 ...
Page 636: ...CHAPTER 52 DOORS 3H14 ...
Page 650: ...CHAPTER 55 STABILIZERS 3I4 ...
Page 662: ...CHAPTER 56 WINDOWS 3I16 ...
Page 670: ...CHAPTER 57 WINGS 3I24 ...
Page 688: ...CHAPTER 61 PROPELLER 3J18 ...
Page 704: ...CHAPTER 70 STANDARD PRACTICES ENGINES 3K10 ...
Page 708: ...CHAPTER 71 POWER PLANT 3K14 ...
Page 737: ...CHAPTER 73 ENGINE FUEL SYSTEM 4A13 ...
Page 749: ...CHAPTER 74 IGNITION 4B1 ...
Page 783: ...CHAPTER 77 ENGINE INDICATING 4C11 ...
Page 793: ...CHAPTER 78 EXHAUST 4C21 ...
Page 801: ...CHAPTER 79 OIL 4D5 ...
Page 805: ...CHAPTER 80 STARTING 4D9 ...
Page 819: ...CHAPTER 81 TURBINES 4D23 ...
Page 833: ...CHAPTER 91 CHARTS WIRING DIAGRAMS 4E13 ...