2300-2500 [5000]

Drill Decimal Equivalents
Fraction, Number, Letter, Metric Drill Sizes

Drill Size	Decimal Equivalent inch	Drill size for Screw Tap	Torque in/lb (Tension Load MS20365 and AN310 - 40,000 psi in bolts) [Max Allowable Torque 90,000 psi in bolts]	Torque in/lb (Shear Load MS20364 and AN320 - 24,000 psi in bolts) [Max Allowable Torque 54,000 psi in bolts]
107	.0019
106	.0023
105	.0027
104	.0031
103	.0035
102	.0039
101	.0043
100	.0047
99	.0051
98	.0055
97	.0059
96	.0063
95	.0067
94	.0071
93	.0075
92	.0079
.2mm	.0079
91	.0083
90	.0087
.22mm	.0087
89	.0091
88	.0095
.25mm	.0098
87	.0100
86	.0105
85	.110
.28mm	.0110
84	.0115
.3mm	.0118
83	.0120
82	.0125
.32mm	.0126
81	.0130
80	.0135
.35mm	.0138
79	.0145
1/64	.0156
.4mm	.0157
78	.0160
.45mm	.0177
77	.0180
.5mm	.0197
76	.0200
75	.0210
.55mm	.0217
74	.0225
.6mm	.0236
73	.0240
72	.0250
.65mm	.0256
71	.0260
.7mm	.0276
70	.0280
69	.0292
.75mm	.0295
68	.0310
1/32	.0312
.8mm	.0315
67	.0320
66	.0330
.85mm	.0335
65	.0350
.9mm	.0354
64	.0360
63	.0370
.95mm	.0374
62	.0380
61	.0390
1mm	.0394
60	.0400
59	.0410
1.05mm	.0413
58	.0420
57	.0430
1.1mm	.0433
1.15mm	.0453
56	.0465	0-80
3/64	.0469
1.2mm	.0472
1.25mm	.0492	M1.6 x .35
1.3mm	.0512
55	.0520
1.35mm	.0531
54	.0550	1-64
1.4mm	.0551
1.45mm	.0571	M1.8 x .35
1.5mm	.0591
53	.0595	1-72
1.55mm	.0610
1/16	.0625
1.6mm	.0630	M2 x 4
52	.0635
1.65mm	.0650
1.7mm	.0669
51	.0670	2-56
1.75mm	.0689
50	.0700	2-64
1.8mm	.0709
1.85mm	.0728
49	.073
1.9mm	.0748
48	.0760	3-48
1.95mm	.0768
5/64	.0781
47	.0785
2mm	.0787	M2.5 x .45
2.05mm	.0807
46	.0810	3-56
45	.0820
2.1mm	.0827
2.15mm	.0846
44	.0860	4-40
2.2mm	.0866
2.25mm	.0886
43	.0890
2.3mm	.0906
2.35mm	.0925
42	.0935	4-48
3/32	.0938
2.4mm	.0945
41	.0960
2.45mm	.0965
40	.0980	5-40
2.5mm	.0984	M3 x .5
39	.0995
38	.1015
2.6mm	.1024
37	.1040	6-32
2.7mm	.1063
36	.1065
2.75mm	.1083
7/64	.1094
35	.1100
2.8mm	.1102
34	.1110	6-40
33	.113
2.9mm	.1142	M3.5 x .6
32	.1160
3mm	.1181
31	.1200
3.1mm	.1220
1/8	.1250
3.2mm	.1260
3.25mm	.1260
30	.1285
3.3mm	.1299	M4 x 7
3.4mm	.1339
29	.1360	8-32 8-36	12-15 [20]	7-9 [12]
3.5mm	.1378
28	.1405
9/64	.1406
3.6mm	.1417
27	.1440	10-24	20-25 [35]	12-15 [21]
3.7mm	.1457
26	.1470
3.75mm	.1476
25	.1495
3.8mm	.1496
24	.1520
3.9mm	.1535
23	.1540
5/32	.1562	10-32	20-25 [40]	12-15 [25]
22	.1570
4mm	.1575
21	.1590
20	.1610
4.1mm	.1614
4.2mm	.1654	M5 x 8
19	.1660
4.25mm	.1673
4.3mm	.1693
18	.1695
11/64	.1719	12-24
17	.1730
4.4mm	.1732
16	.1770	12-28
4.5mm	.1772
15	.1800
4.6mm	.1811
14	.1820
13	.1850
4.7mm	.1850
4.75mm	.1870
3/16	.1875
4.8mm	.1890
12	.1890
11	.1910
4.9mm	.1929
10	.1935
9	.1960	1/4-20	40-50 [75]	25-30 [45]
5mm	.1969	M6 x 1
8	.1990
5.1mm	.2008
7	.2010
13/64	.2031
6	.2040
5.2mm	.2047
5	.2055
5.25mm	.2067
5.3mm	.2087
4	.2090
5.4mm	.2126
3	.2130	1/4-28	50-70 [100]	30-40[60]
5.5mm	.2165
7/32	.2188
5.6mm	.2205
2	.2211
5.7mm	.2244
5.75mm	.2264
1	.2280
5.8mm	.2283
5.9mm	.2323
A	.2340
15/64	.2344
6mm	.2362	M7 x 1
B	.2380
6.1mm	.2402
C	.2420
6.2mm	.2441
D	.2460
6.25mm	.2461
6.3mm	.2480
E	.250
1/4	.250
6.4mm	.2520
6.5mm	.2559
F	.2570	5/16-18	80-90 [160]	48-55 [100]
6.6mm	.2598
G	.2610
6.7mm	.2638	M8 x 1.25
17/64	.2656
6.75mm	.2657
H	.2660	5/16-24	100-140 [225]	60-85 [140]
6.8mm	.2677
6.9mm	.2717
I	.2720
7mm	.2756	M8 x 1
J	.2770
7.1mm	.2795
K	.2810
9/32	.2812
7.2mm	.2835
7.25mm	.2854
7.3mm	.2874
L	.2900
7.4mm	.2913
M	.2950
7.5mm	.2953
19/64	.2969
7.6mm	.2992
N	.3020
7.7mm	.3031
7.75mm	.3051
7.8mm	.3071
7.9mm	.3110
5/16	.3125	3/8-16	160-185 [275]	95-100 [170]
8mm	.3150
O	.3160
8.1mm	.3189
8.2mm	.3228
P	.3230
8.25mm	.3248
8.3mm	.3268
21/64	.3281	3/8-24	160-190 [390]	95-110 [240]
8.4mm	.3307
Q	.3320
8.5mm	.3346	M10 x 1.5
8.6mm	.3386
R	.3390
8.7mm	.3425	M10 x 1.25
11/32	.3438
8.75mm	.3445
8.8mm	.3465
S	.3480
8.9mm	.3504
9mm	.3543
T	.3580	7/16-14	235-255 [475]	140-155 [280]
9.1mm	.3583
23/64	.3594
9.2mm	.3622
9.25mm	.3642
9.3mm	.3661
U	.3680
9.4mm	.3701
9.5mm	.3740
3/8	.3750
V	.3770
9.6mm	.3780
9.7mm	.3819
9.75mm	.3839
9.8mm	.3858
W	.3860	7/16-20	450-500 [840]	270-300 [500]
9.9mm	.3898
25/64	.3906
10mm	.3937
X	.3970
Y	.4040
13/32	.4062
Z	.4130
10.5mm	.4134	M12 x 1.75
27/64	.4219	1/2-13	400-480 [880]	240-290 [520]
10.8mm	.4251	M12 x 1.50
11mm	.4331	M12 x 1.25
7/16	.4375
11.5mm	.4528
29/64	.4531	1/2-20	480-690 [1100]	290-410 [660]
15/32	.4688	9/16-12	500-700 [1100]	300-420 [650]
12mm	.4724	M14 x 2
31/64	.4844
12.5mm	.4921	M14 x 1.5
1/2	.5000	9/16-18	800-1000 [1600]	480-600 [960]
13mm	.5118
33/64	.5156
17/32	.5312	5/8-11	700-900 [1500]	420-540 [900]
13.5mm	.5315
35/64	.5469
14mm	.5512	M16 x 2
9/16	.5625	5/8-18	1100-1300 [2400]	600-780 [1400]
14.5mm	.5709	M16 x 1.5
37/64	.5781
15mm	.5906
19/32	.5938
39/64	.6094
15.5mm	.6102	M18 x 2.5
5/8	.6250
16mm	.6299
41/64	.6406	3/4-10	1150-1600 [2500]	700-950 [1500]
16.5mm	.6496	M18 x 1.5
21/32	.6562
17mm	.6693
43/64	.6719
11/16	.6875	3/4-16	1300-1500 [3000]
17.5mm	.6890	M20 x 2.5
45/64	.7031
18mm	.7087
23/32	.7188
18.5mm	.7283	M20 x 1.5
47/64	.7344
19mm	.7480
3/4	.7500
49/64	.7656	7/8-9	2200-3000 [4600]	1300-1800 [2700]
19.5mm	.7677
25/32	.7812
20mm	.7874
51/64	.7969	7/8-14	2500-3000 [7000]	1500-1800 [4200]
20.5mm	.8071
13/16	.8125
21mm	.8268
53/64	.8281
27/32	.8438
21.5mm	.8465
55/64	.8594	1-8
22mm	.8661
7/8	.8750
22.5mm	.8858
57/64	.8906
23mm	.9055
29/32	.9062
59/64	.9219
23.5mm	.9252
15/16	.9375
24mm	.9449
61/64	.9531
24.5mm	.9646
31/32	.9688
25mm	.9843
63/64	.9844
1	1.000