Inch, Metric & Wire Gauge Drill Sizes & Decimal Equivalents

Welcome to the world of Inch, Metric & Wire Gauge Drill Sizes & Decimal Equivalents. Let this guide be your ultimate companion. Understanding the precise measurements and decimal equivalents of tap drill sizes is essential for achieving accurate and snug fits in various applications. Dive into this informative resource so you can drill with confidence and precision. Inch Metric Drill Decimal Equivalents...

Drill Size	Decimal	Drill Size	Decimal	Drill Size	Decimal	Drill Size	Decimal
1/64"	0.0156	26	0.1470	K	0.2810	37/64"	0.5781
0.5mm	0.0197	25	0.1495	9/32"	0.2812	15mm	0.5906
1/32"	0.0312	24	0.1520	L	0.2900	19/32"	0.5938
1mm	0.0394	23	0.1540	M	0.2950	39/64"	0.6094
60	0.0400	5/32"	0.1562	7.5mm	0.2953	15.5mm	0.6102
59	0.0410	22	0.1570	19/64"	0.2969	5/8"	0.6250
58	0.0420	4mm	0.1575	N	0.3020	16mm	0.6299
57	0.0430	21	0.1590	5/16"	0.3125	41/64"	0.6406
56	0.0465	20	0.1610	8mm	0.3150	16.5mm	0.6496
3/64"	0.0469	19	0.1660	O	0.3160	21/32"	0.6562
55	0.0520	18	0.1695	P	0.3230	17mm	0.6693
54	0.0550	11/64"	0.1719	21/64"	0.3281	43/64"	0.6719
1.5mm	0.0591	17	0.1730	Q	0.3320	11/16"	0.6875
53	0.0595	16	0.1770	8.5mm	0.3346	17.5mm	0.6890
1/16"	0.0625	4.5mm	0.1772	R	0.3390	45/64"	0.7031
52	0.0635	15	0.1800	11/32"	0.3438	18mm	0.7087
51	0.0670	14	0.1820	S	0.3480	23/32"	0.7188
50	0.0700	13	0.1850	9mm	0.3543	18.5mm	0.7283
49	0.0730	3/16"	0.1875	T	0.3580	47/64"	0.7344
48	0.0760	12	0.1890	23/64"	0.3594	19mm	0.7480
5/64"	0.0781	11	0.1910	U	0.3680	3/4"	0.7500
47	0.0785	10	0.1935	9.5mm	0.3740	49/64"	0.7656
2mm	0.0787	9	0.1960	3/8"	0.3750	19.5mm	0.7677
46	0.0810	5mm	0.1969	V	0.3770	25/32"	0.7812
45	0.0820	8	0.1990	W	0.3860	20mm	0.7874
44	0.0860	7	0.2010	25/64"	0.3906	51/64"	0.7969
43	0.0890	13/64"	0.2031	10mm	0.3937	20.5mm	0.8071
42	0.0935	6	0.2040	X	0.3970	13/16"	0.8125
3/32"	0.0938	5	0.2055	Y	0.4040	21mm	0.8268
41	0.0960	4	0.2090	13/32"	0.4062	53/64"	0.8281
40	0.0980	3	0.2130	Z	0.4130	27/32"	0.8438
2.5mm	0.0984	5.5mm	0.2165	10.5mm	0.4134	21.5mm	0.8465
39	0.0995	7/32"	0.2188	27/64"	0.4219	55/64"	0.8594
38	0.1015	2	0.2210	11mm	0.4331	22mm	0.8661
37	0.1040	1	0.2280	7/16"	0.4375	7/8"	0.8750
36	0.1065	A	0.2340	11.5mm	0.4528	22.5mm	0.8858
7/64"	0.1094	15/64"	0.2344	29/64"	0.4531	57/64"	0.8906
35	0.1100	6mm	0.2362	15/32"	0.4688	23mm	0.9055
34	0.1110	B	0.2380	12mm	0.4724	29/32"	0.9062
33	0.1130	C	0.2420	31/64"	0.4844	59/64"	0.9219
32	0.1160	D	0.2460	12.5mm	0.4921	23.5mm	0.9252
3mm	0.1181	1/4" & E	0.2500	1/2"	0.5000	15/16"	0.9375
31	0.1200	6.5mm	0.2559	13mm	0.5118	24mm	0.9449
1/8"	0.1250	F	0.2570	33/64"	0.5156	61/64"	0.9531
30	0.1285	G	0.2610	17/32"	0.5313	24.5mm	0.9646
29	0.1360	17/64"	0.2656	13.5mm	0.5315	31/32"	0.9688
3.5mm	0.1378	H	0.2260	35/64"	0.5469	25mm	0.9843
28	0.1405	I	0.2720	14mm	0.5512	63/64"	0.9844
9/64"	0.1406	7mm	0.2756	9/16"	0.5625	1"	1.0000
27	0.1440	J	0.2770	14.5mm	0.5709	-	-

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Inch, Metric & Wire Gauge Drill Sizes & Decimal Equivalents

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