Drill Bit Conversion

The below chart is for converting drill bit sizes including gauge, inch & metric. Monroe, nor any of its employees shall be held liable for any improper or incorrect use of the information described and/or contained herein and assumes no responsibility for anyone's use of the information.

gauge	in	mm	gauge	in	mm	gauge	in	mm	gauge	in	mm	gauge	in	mm
104	0.0031	0.079	80	0.0135	0.343	53	0.0595	1.511	26	0.147	3.734	A	0.234	5.944
103	0.0035	0.089	79	0.0145	0.368	52	0.0635	1.613	25	0.1495	3.797	B	0.238	6.045
102	0.0039	0.099	78	0.016	0.406	51	0.067	1.702	24	0.152	3.861	C	0.242	6.147
101	0.0043	0.109	77	0.018	0.457	50	0.07	1.778	23	0.154	3.912	D	0.246	6.248
100	0.0047	0.119	76	0.02	0.508	49	0.073	1.854	22	0.157	3.988	E	0.25	6.35
99	0.0051	0.13	75	0.021	0.533	48	0.076	1.93	21	0.159	4.039	F	0.257	6.528
98	0.0055	0.14	74	0.0225	0.572	47	0.0785	1.994	20	0.161	4.089	G	0.261	6.629
97	0.0059	0.15	73	0.024	0.61	46	0.081	2.057	19	0.166	4.216	H	0.266	6.756
96	0.0063	0.16	72	0.025	0.635	45	0.082	2.083	18	0.1695	4.305	I	0.272	6.909
95	0.0067	0.17	71	0.026	0.66	44	0.086	2.184	17	0.173	4.394	J	0.277	7.036
94	0.0071	0.18	70	0.028	0.711	43	0.089	2.261	16	0.177	4.496	K	0.281	7.137
93	0.0075	0.191	69	0.0292	0.742	42	0.0935	2.375	15	0.18	4.572	L	0.29	7.366
92	0.0079	0.201	68	0.031	0.787	41	0.096	2.438	14	0.182	4.623	M	0.295	7.493
91	0.0083	0.211	67	0.032	0.813	40	0.098	2.489	13	0.185	4.699	N	0.302	7.671
90	0.0087	0.221	66	0.033	0.838	39	0.0995	2.527	12	0.189	4.801	O	0.316	8.026
89	0.0091	0.231	65	0.035	0.889	38	0.1015	2.578	11	0.191	4.851	P	0.323	8.204
88	0.0095	0.241	64	0.036	0.914	37	0.104	2.642	10	0.1935	4.915	Q	0.332	8.433
87	0.01	0.254	63	0.037	0.94	36	0.1065	2.705	9	0.196	4.978	R	0.339	8.611
86	0.0105	0.267	62	0.038	0.965	35	0.11	2.794	8	0.199	5.055	S	0.348	8.839
85	0.011	0.279	61	0.039	0.991	34	0.111	2.819	7	0.201	5.105	T	0.358	9.093
84	0.0115	0.292	60	0.04	1.016	33	0.113	2.87	6	0.204	5.182	U	0.368	9.347
83	0.012	0.305	59	0.041	1.041	32	0.116	2.946	5	0.2055	5.22	V	0.377	9.576
82	0.0125	0.318	58	0.042	1.067	31	0.12	3.048	4	0.209	5.309	W	0.386	9.804
81	0.013	0.33	57	0.043	1.092	30	0.1285	3.264	3	0.213	5.41	X	0.397	10.08
			56	0.0465	1.181	29	0.136	3.454	2	0.221	5.613	Y	0.404	10.26
			55	0.052	1.321	28	0.1405	3.569	1	0.228	5.791	Z	0.413	10.49
			54	0.055	1.397	27	0.144	3.658	-	-		-	-

Are you looking for Fasteners?

Submit an RFQ now!

Get a Quote