Decimal Equivalents
Drill Size | Decimal Inches |
---|---|
97 | 0.0059 |
.15mm | 0.0059 |
96 | 0.0063 |
.16mm | 0.0063 |
95 | 0.0067 |
.17mm | 0.0067 |
94 | 0.0071 |
.18mm | 0.0071 |
93 | 0.0075 |
.19mm | 0.0075 |
92 | 0.0079 |
.2mm | 0.0079 |
91 | 0.0083 |
.21mm | 0.0083 |
90 | 0.0087 |
.22mm | 0.0087 |
89 | 0.0091 |
.23mm | 0.0091 |
.24mm | 0.0094 |
88 | 0.0095 |
.25mm | 0.0098 |
87 | 0.0100 |
.26mm | 0.0102 |
86 | 0.0105 |
.27mm | 0.0106 |
85 | 0.0110 |
.28mm | 0.0110 |
.29mm | 0.0114 |
84 | 0.0115 |
.3mm | 0.0118 |
83 | 0.0120 |
82 | 0.0125 |
.32mm | 0.0126 |
81 | 0.0130 |
.34mm | 0.0134 |
80 | 0.0135 |
.35mm | 0.0138 |
.36mm | 0.0142 |
79 | 0.0145 |
.38mm | 0.0150 |
1/64 | 0.0156 |
.4mm | 0.0157 |
78 | 0.0160 |
.42mm | 0.0165 |
.44mm | 0.0173 |
.45mm | 0.0177 |
77 | 0.0180 |
.46mm | 0.0181 |
.48mm | 0.0189 |
.5mm | 0.0197 |
76 | 0.0200 |
75 | 0.0210 |
.55mm | 0.0217 |
74 | 0.0225 |
.6mm | 0.0236 |
73 | 0.0240 |
72 | 0.0250 |
.65mm | 0.0256 |
71 | 0.0260 |
.7mm | 0.0276 |
70 | 0.0280 |
69 | 0.0292 |
.75mm | 0.0295 |
68 | 0.0310 |
1/32 | 0.0312 |
.8mm | 0.0315 |
67 | 0.0320 |
66 | 0.0330 |
.85mm | 0.0335 |
65 | 0.0350 |
.9mm | 0.0354 |
64 | 0.0360 |
63 | 0.0370 |
.95mm | 0.0374 |
62 | 0.0380 |
61 | 0.0390 |
1mm | 0.0394 |
60 | 0.0400 |
59 | 0.0410 |
1.05mm | 0.0413 |
Drill Size | Decimal Inches | Tap Size |
---|---|---|
58 | 0.0420 | Â |
57 | 0.0430 | Â |
1.1mm | 0.0433 | Â |
1.15mm | 0.0453 | Â |
56 | 0.0465 | Â |
3/64 | 0.0469 | #0-80 |
1.2mm | 0.0472 | Â |
1.25mm | 0.0492 | M1.6×0.35 |
1.3mm | 0.0512 | Â |
55 | 0.0520 | Â |
1.35mm | 0.0531 | Â |
54 | 0.0550 | Â |
1.4mm | 0.0551 | Â |
1.45mm | 0.0571 | M1.8×0.35 |
1.5mm | 0.0591 | Â |
53 | 0.0595 | #1-64,72 |
1.55mm | 0.0610 | Â |
1/16 | 0.0625 | Â |
1.6mm | 0.0630 | M2x0.4 |
52 | 0.0635 | Â |
1.65mm | 0.0650 | Â |
1.7mm | 0.0669 | Â |
51 | 0.0670 | #2-56 |
1.75mm | 0.0689 | M2.2×0.45 |
50 | 0.0700 | #2-64 |
1.8mm | 0.0709 | Â |
1.85mm | 0.0728 | Â |
49 | 0.0730 | Â |
1.9mm | 0.0748 | M2.3x.04 |
48 | 0.0760 | Â |
1.95mm | 0.0768 | Â |
5/64 | 0.0781 | Â |
47 | 0.0785 | #3-48 |
2mm | 0.0787 | Â |
2.05mm | 0.0807 | M2.5×0.45 |
46 | 0.0810 | Â |
45 | 0.0820 | #3-56 |
2.1mm | 0.0827 | Â |
2.15mm | 0.0846 | M2.6×0.45 |
44 | 0.0860 | #4-36 |
2.2mm | 0.0866 | Â |
2.25mm | 0.0886 | Â |
43 | 0.0890 | #4-40 |
2.3mm | 0.0906 | Â |
2.35mm | 0.0925 | Â |
42 | 0.0936 | #4-48 |
3/32 | 0.0938 | Â |
2.4mm | 0.0945 | Â |
41 | 0.0960 | Â |
2.45mm | 0.0965 | Â |
40 | 0.0980 | Â |
2.5mm | 0.0984 | M3x0.5 |
39 | 0.0995 | Â |
38 | 0.1015 | #5-40 |
2.6mm | 0.1024 | Â |
37 | 0.1040 | #5-44 |
2.7mm | 0.1063 | Â |
36 | 0.1065 | #6-32 |
2.75mm | 0.1083 | Â |
7/64 | 0.1094 | Â |
35 | 0.1100 | Â |
2.8mm | 0.1102 | Â |
34 | 0.1110 | Â |
33 | 0.1130 | #6-40 |
2.9mm | 0.1142 | M3.5×0.6 |
32 | 0.1160 | Â |
3mm | 0.1181 | Â |
31 | 0.1200 | Â |
3.1mm | 0.1220 | Â |
1/8 | 0.1250 | 5/32-32NS |
3.2mm | 0.1260 | Â |
3.25mm | 0.1280 | Â |
30 | 0.1285 | 5/32-36NS |
3.3mm | 0.1299 | M4x0.70 |
3.4mm | 0.1339 | Â |
29 | 0.1360 | #8-32 |
3.5mm | 0.1378 | Â |
28 | 0.1405 | Â |
9/64 | 0.1406 | Â |
3.6mm | 0.1417 | Â |
Drill Size | Decimal Inches | Tap Size |
---|---|---|
27 | 0.1440 | |
3.7mm | 0.1457 | |
26 | 0.1470 | 3/16-24NS |
3.75mm | 0.1476 | M4.5×0.75 |
25 | 0.1495 | #10-24 |
3.8mm | 0.1496 | |
24 | 0.1520 | |
3.9mm | 0.1535 | |
23 | 0.1540 | |
5/32 | 0.1562 | |
22 | 0.1570 | 3/16-32NS |
4mm | 0.1575 | |
21 | 0.1590 | #10-32 |
20 | 0.1610 | |
4.1mm | 0.1614 | |
4.2mm | 0.1654 | M5x0.8 |
19 | 0.1660 | |
4.25mm | 0.1673 | |
4.3mm | 0.1693 | |
18 | 0.1695 | |
11 | 64 | 0.1719 |
17 | 0.1730 | |
4.4mm | 0.1732 | |
16 | 0.1770 | #12-24 |
4.5mm | 0.1772 | |
15 | 0.1800 | |
4.6mm | 0.1811 | |
14 | 0.1820 | #12-28 |
13 | 0.1850 | |
4.7mm | 0.1850 | |
4.75mm | 0.1870 | |
3/16 | 0.1875 | |
4.8mm | 0.1890 | |
12 | 0.1890 | 7/32-32NS |
11 | 0.1910 | |
4.9mm | 0.1929 | |
10 | 0.1935 | |
9 | 0.1960 | |
5mm | 0.1969 | M6x1 |
8 | 0.1990 | |
5.1m | 0.2008 | |
7 | 0.2010 | 1/4-20 |
13 | 64 | 0.2031 |
6 | 0.2040 | |
5.2mm | 0.2047 | |
5 | 0.2055 | |
5.25mm | 0.2067 | M6x0.75 |
5.3mm | 0.2087 | |
4 | 0.2090 | 1/4-24 |
5.4mm | 0.2126 | |
3 | 0.2130 | 1/4-28 |
5.5mm | 0.2165 | |
7/32 | 0.2188 | |
5.6mm | 0.2205 | |
2 | 0.2210 | |
5.7mm | 0.2244 | |
5.75mm | 0.2264 | |
1 | 0.2280 | |
5.8mm | 0.2283 | |
5.9mm | 0.2323 | |
A | 0.2340 | |
15 | 64 | 0.2344 |
6mm | 0.2362 | M7x1 |
B | 0.2380 | |
6.1mm | 0.2402 | |
C | 0.2420 | |
6.2mm | 0.2441 | |
D | 0.2460 | |
6.25mm | 0.2461 | 1/16-27NPT |
6.3mm | 0.2480 | |
E | 0.2500 | 1/16-27NPT |
1/4 | 0.2500 | |
6.4mm | 0.2520 | |
6.5mm | 0.2559 | |
F | 0.2570 | 5/16-18NC |
6.6mm | 0.2598 | |
G | 0.2610 | |
6.7mm | 0.2638 | |
17 | 64 | 0.2656 |
6.75mm | 0.2657 | M8x1.25 |
Drill Size | Decimal Inches | Tap Size |
---|---|---|
H | 0.2660 | |
6.8mm | 0.2677 | |
6.9mm | 0.2717 | |
I | 0.2720 | 5/16-24NF |
7mm | 0.2756 | M8x1 |
J | 0.2770 | |
7.1mm | 0.2795 | |
K | 0.2810 | |
9/32 | 0.2812 | 5/16-32NS |
7.2mm | 0.2835 | |
7.25mm | 0.2854 | |
7.30mm | 0.2874 | |
L | 0.2900 | |
7.4mm | 0.2913 | |
M | 0.2950 | |
7.5mm | 0.2953 | |
19/64 | 0.2969 | |
7.6mm | 0.2992 | |
N | 0.3020 | |
7.7mm | 0.3031 | |
7.75mm | 0.3051 | M9x1.25 |
7.8mm | 0.3071 | |
7.9mm | 0.3110 | |
5/16 | 0.3125 | 3/8-16NC |
8mm | 0.3150 | |
O | 0.3160 | |
8.1mm | 0.3189 | |
8.2mm | 0.3228 | |
P | 0.3230 | |
8.25mm | 0.3248 | |
8.3mm | 0.3268 | |
21/64 | 0.3281 | |
8.4mm | 0.3307 | |
Q | 0.3320 | 3/8-24NF |
8.5mm | 0.3346 | M10x1.5 |
8.6mm | 0.3386 | |
R | 0.3390 | 1/8-27NPT |
8.7mm | 0.3425 | |
11/32 | 0.3438 | |
8.75mm | 0.3445 | M10x1.25 |
8.8mm | 0.3465 | |
S | 0.3480 | 1/8-27NPT |
8.9mm | 0.3504 | |
9mm | 0.3543 | M10x1.00 |
T | 0.3580 | |
9.1mm | 0.3583 | |
23/64 | 0.3594 | |
9.2mm | 0.3622 | |
9.25mm | 0.3642 | |
9.3mm | 0.3661 | |
U | 0.3680 | 7/16-14NC |
9.4mm | 0.3701 | |
9.5mm | 0.3740 | M11x1.50 |
3/8 | 0.3750 | |
V | 0.3770 | |
9.6mm | 0.3780 | |
9.7mm | 0.3819 | |
9.75mm | 0.3839 | |
9.8mm | 0.3858 | |
W | 0.3860 | |
9.9mm | 0.3998 | |
25/64 | 0.3906 | 7/16-20 |
10mm | 0.3937 | M12x1.75 |
X | 0.3970 | |
Y | 0.4040 | |
13/32 | 0.4062 | |
Z | 0.4130 | |
10.5mm | 0.4131 | M12x1.25 |
27/64 | 0.4219 | 1/2-13 |
11mm | 0.4331 | |
7/16 | 0.4375 | 1/4-18NPT |
11.5mm | 0.4528 | |
29/64 | 0.4531 | 1/4-18NPT 1/2-20 |
15/32 | 0.4688 | |
12mm | 0.4724 | M14x2 |
31/64 | 0.4844 | 9/16-12 |
12.5mm | 0.4921 | M14x1.5 |
1/2 | 0.5000 | |
13mm | 0.5118 | M14x1.25 |
33/64 | 0.5156 | 9/16-18 |
Drill Size | Decimal Inches | Tap Size |
---|---|---|
17/32 | 0.5312 | 5/8-11 |
13.5mm | 0.5315 | |
35/64 | 0.5469 | |
14mm | 0.5512 | m16x2 |
9/16 | 0.5625 | |
14.5mm | 0.5709 | M16x1.5 |
37/64 | 0.5781 | 3/8-18NPT 5/8-18NF |
15mm | 0.5906 | |
19/32 | 0.5938 | 3/8-18NPS |
39/64 | 0.6094 | |
15.5mm | 0.6102 | M18x2.5 |
5/8 | 0.6250 | 11/16-16NS |
16mm | 0.6299 | M18x20 |
41/64 | 0.6406 | |
16.5mm | 0.6496 | |
21/32 | 0.6562 | 3/4-10NC |
17mm | 0.6693 | |
43/64 | 0.6719 | |
11/16 | 0.6875 | 3/4-16NF |
17.5mm | 0.6890 | M20x2.5 |
45/64 | 0.7031 | |
18mm | 0.7087 | M20x2.0 |
23/32 | 0.7188 | 1/2-14NPT |
18.5mm | 0.7283 | M20x1.5 |
47/64 | 0.7344 | 1/2-14NPS |
19mm | 0.7480 | |
3/4 | 0.7500 | |
49/64 | 0.7656 | 7/8-9NC |
19.5mm | 0.7677 | M22x2.5 |
25/32 | 0.7812 | |
20mm | 0.7874 | M22x2.0 |
51/64 | 0.7969 | |
20.5mm | 0.8071 | M22x1.5 |
13/16 | 0.8125 | 7/8-14NF |
21mm | 0.8268 | M24x3 |
53/64 | 0.8281 | |
27/32 | 0.8438 | |
21.5mm | 0.8465 | |
55/64 | 0.8594 | |
22mm | 0.8661 | M24x2 |
7/8 | 0.8750 | 1-8NC |
22.25mm | 0.8760 | |
22.5mm | 0.8858 | M24x1.50 |
57/64 | 0.8906 | |
23mm | 0.9055 | |
29/32 | 0.9062 | |
59/64 | 0.9219 | 3/4-14NPT |
23.5mm | 0.9252 | |
15/16 | 0.9375 | 3/4-14NPS |
24mm | 0.9449 | >M27x3 |
61/64 | 0.9531 | |
24.5mm | 0.9646 | |
31/32 | 0.9688 | |
25mm | 0.9843 | M27x2 |
63/64 | 0.9844 | 1-1/8-7NC |
1 | 1.00 | |
25.5mm | 1.0039 | |
1-1/64 | 1.0156 | |
26mm | 1.0236 | |
1-1/32 | 1.0312 | |
26.5mm | 1.0433 | M30x3.5 |
1-3/64 | 1.0469 | 1-1/8-12NF |
1-1/16 | 1.0625 | |
27mm | 1.0630 | |
1-5/64 | 1.0781 | |
27.5mm | 1.0827 | |
1-3/32 | 1.0938 | |
28mm | 1.1024 | M30x2.0 |
1-7/64 | 1.1094 | 1-1/4-7NC |
28.5mm | 1.1220 | |
1-1/8 | 1.1250 | |
1-9/64 | 1.1406 | |
29mm | 1.1417 | |
1-5/32 | 1.1562 | 1-11-1/2NPT |
29.5mm | 1.1614 | |
1-11/64 | 1.1719 | 1-1/4-12NF |