Records 1–400 — Tap drill size and drill-size decimal equivalents

Records 1 to 400 of 570. Each links to its own page, which carries the source URL and the quoted line that states the value.

0.35 mm.35 | .0138"
0.4 mm.40 | .0157"
0.45 mm.45 | .0177"
0.5 mm.50 | .0197"
0.55 mm.55 | .0217"
0.6 mm.60 | .0236"
0.65 mm.65 | .0256"
0.7 mm.70 | .0276"
0.75 mm.75 | .0295"
0.8 mm.80mm | .0315
0.85 mm.85mm | .0335
0.9 mm.90mm | .0354
0.95 mm.95mm | .0374
1"1" | 1.000
1/2"1/2" | .5000
1/4"1/4" | .2500
1/8"1/8" | .1250
1/16"1/16" | .0625
1/32"1/32" | .0313
1/64"1/64" | .0156
1 mm1.00mm | .0394
1.05 mm1.05mm | .0413
1.1 mm1.10mm | .0433
1.15 mm1.15mm | .0453
1.2 mm1.20mm | .0472
1.25 mm1.25mm | .0492
1.3 mm1.30mm | .0512
1.35 mm1.35mm | .0531
1.4 mm1.40mm | .0551
1.45 mm1.45mm | .0571
1.5 mm1.50mm | .0591
1.55 mm1.55mm | .0610
1.6 mm1.60mm | .0630
1.65 mm1.65mm | .0650
1.7 mm1.70mm | .0669
1.75 mm1.75mm | .0689
1.8 mm1.80mm | .0709
1.85 mm1.85mm | .0728
1.9 mm1.90mm | .0748
1.95 mm1.95mm | .0768
2 mm2.00mm | .0787
2.05 mm2.05mm | .0807
2.1 mm2.10mm | .0827
2.15 mm2.15mm | .0846
2.2 mm2.20mm | .0866
2.25 mm2.25mm | .0886
2.3 mm2.30mm | .0906
2.35 mm2.35mm | .0925
2.4 mm2.40mm | .0945
2.45 mm2.45mm | .0965
2.5 mm2.50mm | .0984
2.55 mm2.55mm | .1004
2.6 mm2.60mm | .1024
2.65 mm2.65mm | .1043
2.7 mm2.70mm | .1063
2.75 mm2.75mm | .1083
2.8 mm2.80mm | .1102
2.85 mm2.85mm | .1122
2.9 mm2.90mm | .1142
2.95 mm2.95mm | .1161
3/4"3/4" | .7500
3/8"3/8" | .3750
3/16"3/16" | .1875
3/32"3/32" | .0938
3/64"3/64" | .0469
3 mm3.00mm | .1181
3.1 mm3.10mm | .1220
3.15 mm3.15mm | .1240
3.2 mm3.20mm | .1260
3.25 mm3.25mm | .1280
3.3 mm3.30mm | .1299
3.4 mm3.40mm | .1339
3.5 mm3.50mm | .1378
3.6 mm3.60mm | .1417
3.7 mm3.70mm | .1457
3.75 mm3.75mm | .1476
3.8 mm3.80mm | .1496
3.9 mm3.90mm | .1535
4 mm4.00mm | .1575
4.1 mm4.10mm | .1614
4.2 mm4.20mm | .1654
4.25 mm4.25mm | .1673
4.3 mm4.30mm | .1693
4.4 mm4.40mm | .1732
4.5 mm4.50mm | .1772
4.6 mm4.60mm | .1811
4.7 mm4.70mm | .1850
4.75 mm4.75mm | .1870
4.8 mm4.80mm | .1890
4.9 mm4.90mm | .1929
5/8"5/8" | .6250
5/16"5/16" | .3125
5/32"5/32" | .1562
5/64"5/64" | .0781
5 mm5.00mm | .1969
5.1 mm5.10mm | .2008
5.2 mm5.20mm | .2047
5.25 mm5.25mm | .2067
5.3 mm5.30mm | .2087
5.4 mm5.40mm | .2126
5.5 mm5.50mm | .2165
5.6 mm5.60mm | .2205
5.7 mm5.70mm | .2244
5.75 mm5.75mm | .2264
5.8 mm5.80mm | .2283
5.9 mm5.90mm | .2323
6 mm6.00mm | .2362
6.1 mm6.10mm | .2402
6.2 mm6.20mm | .2441
6.25 mm6.25mm | .2461
6.3 mm6.30mm | .2480
6.4 mm6.40mm | .2520
6.5 mm6.50mm | .2559
6.6 mm6.60mm | .2598
6.7 mm6.70mm | .2638
6.75 mm6.75mm | .2657
6.8 mm6.80mm | .2677
6.9 mm6.90mm | .2717
7/8"7/8" | .8750
7/16"7/16" | .4375
7/32"7/32" | .2188
7/64"7/64" | .1094
7 mm7.00mm | .2756
7.1 mm7.10mm | .2795
7.2 mm7.20mm | .2835
7.25 mm7.25mm | .2854
7.3 mm7.30mm | .2874
7.4 mm7.40mm | .2913
7.5 mm7.50mm | .2953
7.6 mm7.60mm | .2992
7.7 mm7.70mm | .3031
7.75 mm7.75 | .3051"
7.8 mm7.80mm | .3071
7.9 mm7.90mm | .3110
8 mm8.00mm | .3150
8.1 mm8.10mm | .3189
8.2 mm8.20mm | .3228
8.25 mm8.25mm | .3248
8.3 mm8.30mm | .3268
8.4 mm8.40mm | .3307
8.5 mm8.50mm | .3346
8.6 mm8.60mm | .3386
8.7 mm8.70mm | .3425
8.75 mm8.75mm | .3445
8.8 mm8.80mm | .3465
8.9 mm8.90mm | .3504
9/16"9/16" | .5625
9/32"9/32" | .2812
9/64"9/64" | .1406
9 mm9.00mm | .3543
9.1 mm9.10mm | .3583
9.2 mm9.20mm | .3622
9.25 mm9.25mm | .3642
9.3 mm9.30mm | .3661
9.4 mm9.40mm | .3701
9.5 mm9.50mm | .3740
9.6 mm9.60mm | .3780
9.7 mm9.70mm | .3819
9.75 mm9.75mm | .3839
9.8 mm9.80mm | .3858
9.9 mm9.90mm | .3898
10 mm10.00mm | .3937
10.1 mm10.10mm | .3976
10.2 mm10.20mm | .4016
10.25 mm10.25mm | .4035
10.3 mm10.30mm | .4055
10.4 mm10.40mm | .4094
10.5 mm10.50mm | .4134
10.6 mm10.60mm | .4173
10.7 mm10.70mm | .4213
10.8 mm10.80mm | .4252
10.9 mm10.90mm | .4291
11/16"11/16" | .6875
11/32"11/32" | .3438
11/64"11/64" | .1719
11 mm11.00mm | .4331
11.1 mm11.10mm | .4370
11.2 mm11.20mm | .4409
11.25 mm11.25mm | .4429
11.3 mm11.30mm | .4449
11.4 mm11.40mm | .4488
11.5 mm11.50mm | .4528
11.6 mm11.60mm | .4567
11.7 mm11.70mm | .4606
11.75 mm11.75mm | .4626
11.8 mm11.80mm | .4646
11.9 mm11.90mm | .4685
12 mm12.00mm | .4724
12.5 mm12.50mm | .4921
13/16"13/16" | .8125
13/32"13/32" | .4062
13/64"13/64" | .2031
13 mm13.00mm | .5118
13.5 mm13.50mm | .5315
14 mm14.00mm | .5512
14.5 mm14.50mm | .5709
15/16"15/16" | .9375
15/32"15/32" | .4688
15/64"15/64" | .2344
15 mm15.00mm | .5906
15.5 mm15.50mm | .6102
16 mm16.00mm | .6299
16.5 mm16.50mm | .6496
17/32"17/32" | .5313
17/64"17/64" | .2656
17 mm17.00mm | .6693
17.5 mm17.50mm | .6890
18 mm18.00mm | .7087
18.5 mm18.50mm | .7283
19/32"19/32" | .5938
19/64"19/64" | .2969
19 mm19.00mm | .7480
19.5 mm19.50mm | .7677
20 mm20.00mm | .7874
20.5 mm20.50mm | .8071
21/32"21/32" | .6562
21/64"21/64" | .3281
21 mm21.00mm | .8268
21.5 mm21.50mm | .8465
22 mm22.00mm | .8661
22.5 mm22.50mm | .8858
23/32"23/32" | .7188
23/64"23/64" | .3594
23 mm23.00mm | .9055
23.5 mm23.50mm | .9252
24 mm24.00mm | .9449
24.5 mm24.50mm | .9646
25/32"25/32" | .7812
25/64"25/64" | .3906
25 mm25.00mm | .9843
27/32"27/32" | .8438
27/64"27/64" | .4219
29/32"29/32" | .9062
29/64"29/64" | .4531
31/32"31/32" | .9688
31/64"31/64" | .4844
33/64"33/64" | .5156
35/64"35/64" | .5469
37/64"37/64" | .5781
39/64"39/64" | .6094
41/64"41/64" | .6406
43/64"43/64" | .6719
45/64"45/64" | .7031
47/64"47/64" | .7344
49/64"49/64" | .7656
51/64"51/64" | .7969
53/64"53/64" | .8281
55/64"55/64" | .8594
57/64"57/64" | .8906
59/64"59/64" | .9219
61/64"61/64" | .9531
63/64"63/64" | .9844
#1#1 | .2280
#2#2 | .2210
#3#3 | .2130
#4$4 | .2090
#5#5 | .2055
#6#6 | .2040
#7#7 | .2010
#8#8 | .1990
#9#9 | .1960
#10#10 | .1935
#11#11 | .1910
#12#12 | .1890
#13#13 | .1850
#14#14 | .1820
#15#15 | .1800
#16#16 | .1770
#17#17 | .1730
#18#18 | .1695
#19#19 | .1660
#20#20 | .1610
#21#21 | .1590
#22#22 | .1570
#23#23 | .1540
#24#24 | .1520
#25#25 | .1495
#26#26 | .1470
#27#27 | .1440
#28#28 | .1405
#29#29 | .1360
#30#30 | .1285
#31#31 | .1200
#32#32 | .1160
#33#33 | .1130
#34#34 | .1110
#35#35 | .1100
#36#36 | .1065
#37#37 | .1040
#38#38 | .1015
#39#39 | .0995
#40#40 | .0980
#41#41 | .0960
#42#42 | .0935
#43#43 | .0890
#44#44 | .0860
#45#45 | .0820
#46#46 | .0810
#47#47 | .0785
#48#48 | .0760
#49#49 | .0730
#50#50 | .0700
#51#51 | .0670
#52#52 | .0635
#53#53 | .0595
#54#54 | .0550
#55#55 | .0520
#56#56 | .0465
#57#57 | .0430
#58#58 | .0420
#59#59 | .0410
#60#60 | .0400
#61#61 | .0390
#62#62 | .0380
#63#63 | .0370
#64#64 | .0360
#65#65 | .0350
#66#66 | .0330
#67#67 | .0320
#68#68 | .0310
#69#69 | .0292
#70#70 | .0280
#71#71 | .0260
#72#72 | .0250
#73#73 | .0240
#74#74 | .0225
#75#75 | .0210
#76#76 | .0200
#77#77 | .0180
#78#78 | .0160
#79#79 | .0145
#80#80 | .0135"
AA | .2340"
BB | .2380"
1" · British Standard Fine (BSF)1" | 10 | 22.75mm
1/2" · British Standard Fine (BSF)1/2" | 16 | 11.10mm or 7/16"
1/4" · British Standard Fine (BSF)1/4" | 26 | 5.30mm
3/4" · British Standard Fine (BSF)3/4" | 12 | 16.75mm
3/8" · British Standard Fine (BSF)3/8" | 20 | 8.30mm
3/16" · British Standard Fine (BSF)3/16" | 32 | 4.00mm or 5/32"
5/8" · British Standard Fine (BSF)5/8" | 14 | 14.00mm
5/16" · British Standard Fine (BSF)5/16" | 22 | 6.80mm
7/8" · British Standard Fine (BSF)7/8" | 11 | 19.75mm
7/16" · British Standard Fine (BSF)7/16" | 18 | 9.70mm
9/16" · British Standard Fine (BSF)9/16" | 16 | 12.70mm or 1/2"
1-1/2" · British Standard Pipe Parallel (BSP)1-1/2" | 11 | 1.882 | 45.5 mm
1-1/4" · British Standard Pipe Parallel (BSP)1-1/4" | 11 | 1.650 | 39.50 mm
1/2 · British Standard Pipe Parallel (BSP)1/2 | 14 | 0.825 | 19.00mm
1-3/4" · British Standard Pipe Parallel (BSP)1-3/4" | 11 | 2.116 | 51.00 mm
1/4 · British Standard Pipe Parallel (BSP)1/4 | 19 | 0.518 | 11.8 mm
1/8 · British Standard Pipe Parallel (BSP)1/8 | 28 | 0.383 | 8.8 mm
1/16 · British Standard Pipe Parallel (BSP)1/16 | 28 | 0.304 | 6.6 mm
1 inch · British Standard Pipe Parallel (BSP)1 inch | 11 | 1.309 | 30.75 mm
2" · British Standard Pipe Parallel (BSP)2" | 11 | 2.347 | 57 mm
3/4 · British Standard Pipe Parallel (BSP)3/4 | 14 | 1.041 | 24.5 mm
3/8 · British Standard Pipe Parallel (BSP)3/8 | 19 | 0.656 | 15.25 mm
5/8 · British Standard Pipe Parallel (BSP)5/8 | 14 | 0.902 | 21 mm
7/8 · British Standard Pipe Parallel (BSP)7/8 | 14 | 1.189 | 28.25 mm
1-1/2" · British Standard Pipe Taper (BSPT)1-1/2" | 11 | 1.882 | 45.5 mm | 44.5mm
1-1/4" · British Standard Pipe Taper (BSPT)1-1/4" | 11 | 1.650 | 39.50 mm | 38.5mm
1/2 · British Standard Pipe Taper (BSPT)1/2 | 14 | 0.825 | 19.00mm | 18.25mm
1/4 · British Standard Pipe Taper (BSPT)1/4 | 19 | 0.518 | 11.8 mm | 11.2mm
1/8 · British Standard Pipe Taper (BSPT)1/8 | 28 | 0.383 | 8.8 mm | 8.4mm
1 inch · British Standard Pipe Taper (BSPT)1 inch | 11 | 1.309 | 30.75 mm | 30mm
2" · British Standard Pipe Taper (BSPT)2" | 11 | 2.347 | 57 mm | 56mm
3/4 · British Standard Pipe Taper (BSPT)3/4 | 14 | 1.041 | 24.5 mm | 23.75mm
3/8 · British Standard Pipe Taper (BSPT)3/8 | 19 | 0.656 | 15.25 mm | 14.75mm
1" · British Standard Whitworth (BSW)1" | 8 | 22.00
1-1/2" · British Standard Whitworth (BSW)1-1/2" | 6 | 33.50mm
1-1.4" · British Standard Whitworth (BSW)1-1.4" | 7 | 28.00mm
1-1/8" · British Standard Whitworth (BSW)1-1/8" | 7 | 24.75mm
1/2" · British Standard Whitworth (BSW)1/2" | 12 | 10.50mm
1-3/4" · British Standard Whitworth (BSW)1-3/4" | 5 | 39.00mm
1/4" · British Standard Whitworth (BSW)1/4" | 20 | 5.10mm
1/8" · British Standard Whitworth (BSW)1/8" | 40 | 2.55mm
2" · British Standard Whitworth (BSW)2" | 4.5 | 44.50mm
3/4" · British Standard Whitworth (BSW)3/4" | 10 | 16.25mm or 41/64"
3/8" · British Standard Whitworth (BSW)3/8" | 16 | 7.90mm or 5/16"
3/16" · British Standard Whitworth (BSW)3/16" | 24 | 3.70mm
5/8" · British Standard Whitworth (BSW)5/8" | 11 | 13.50mm
5/16" · British Standard Whitworth (BSW)5/16" | 18 | 6.50mm
5/32" · British Standard Whitworth (BSW)5/32" | 32 | 3.20mm
7/8" · British Standard Whitworth (BSW)7/8" | 9 | 19.25mm
7/16" · British Standard Whitworth (BSW)7/16" | 14 | 9.30mm
9/16" · British Standard Whitworth (BSW)9/16" | 12 | 12.10mm
11/16" · British Standard Whitworth (BSW)11/16" | 11 | 15.00mm
CC | .2420"
DD | .2460"
EE | .2500"
FF | .2570"
GG | .2610"
HH | .2660"
II | .2720"
JJ | .2770"
KK | .2810"
LL | .2900"
MM | .2950"
1.1 x .25 · Metric Coarse1.1 x .25 | .85
1.2 x .25 · Metric Coarse1.2 x .25 | .95
1.4 x .3 · Metric Coarse1.4 x .3 | 1.1

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