Ohio Drill & Tool


Fractional Sizes

catalog page: 45
Size	Part Number	Decimal Equivalent	Overall Length	Flute Length	Number of Flutes
1/64	548001	.0156	2	3/8	3
1/32	548002	.0313	2-1/2	1/2	3
3/64	548003	.0469	3	3/4	4
1/16	548004	.0625	3	3/4	4
5/64	548005	.0781	3	3/4	4
3/32	548006	.0938	3	3/4	4
7/64	548007	.1094	3-1/2	7/8	4
1/8	548008	.1250	3-1/2	7/8	4
9/64	548009	.1406	4	1	4
5/32	548010	.1563	4	1	4
11/64	548011	.1719	4-1/2	1-1/8	4
3/16	548012	.1875	4-1/2	1-1/8	4
13/64	548013	.2031	5	1-1/4	4
7/32	548014	.2188	5	1-1/4	4
15/64	548015	.2344	6	1-1/2	4
1/4	548016	.2500	6	1-1/2	4

Letter Sizes

catalog page: 45
Size	Part Number	Decimal Equivalent	Overall Length	Flute Length	Number of Flutes
A	550901	.2340	6	1-1/2	4
B	550902	.2380	6	1-1/2	4
C	550903	.2420	6	1-1/2	4
D	550904	.2460	6	1-1/2	4
E	550905	.2500	6	1-1/2	4
F	550906	.2570	6	1-1/2	4

Wire Gauge Sizes

catalog page: 46
Size	Part Number	Decimal Equivalent	Overall Length	Flute Length	Number of Flutes
1	549801	.2280	6	1-1/2	4
2	549802	.2210	6	1-1/2	4
3	549803	.2130	5	1-1/4	4
4	549804	.2090	5	1-1/4	4
5	549805	.2055	5	1-1/4	4
6	549806	.2040	5	1-1/4	4
7	549807	.2010	5	1-1/4	4
8	549808	.1990	5	1-1/4	4
9	549809	.1960	5	1-1/4	4
10	549810	.1935	5	1-1/4	4
11	549811	.1910	5	1-1/4	4
12	549812	.1890	5	1-1/4	4
13	549813	.1850	4-1/2	1-1/8	4
14	549814	.1820	4-1/2	1-1/8	4
15	549815	.1800	4-1/2	1-1/8	4
16	549816	.1770	4-1/2	1-1/8	4
17	549817	.1730	4-1/2	1-1/8	4
18	549818	.1695	4-1/2	1-1/8	4
19	549819	.1660	4-1/2	1-1/8	4
20	549820	.1610	4-1/2	1-1/8	4
21	549821	.1590	4-1/2	1-1/8	4
22	549822	.1570	4-1/2	1-1/8	4
23	549823	.1540	4	1	4
24	549824	.1520	4	1	4
25	549825	.1495	4	1	4
26	549826	.1470	4	1	4
27	549827	.1440	4	1	4
28	549828	.1405	4	1	4
29	549829	.1360	4	1	4
30	549830	.1285	4	1	4
31	549831	.1200	3-1/2	7/8	4
32	549832	.1160	3-1/2	7/8	4
33	549833	.1130	3-1/2	7/8	4
34	549834	.1110	3-1/2	7/8	4
35	549835	.1100	3-1/2	7/8	4
36	549836	.1065	3-1/2	7/8	4
37	549837	.1040	3-1/2	7/8	4
38	549838	.1015	3-1/2	7/8	4
39	549839	.0995	3-1/2	7/8	4
40	549840	.0980	3-1/2	7/8	4
41	549841	.0960	3-1/2	7/8	4
42	549842	.0935	3	3/4	4
43	549843	.0890	3	3/4	4
44	549844	.0860	3	3/4	4
45	549845	.0820	3	3/4	4
46	549846	.0810	3	3/4	4
47	549847	.0785	3	3/4	4
48	549848	.0760	3	3/4	4
49	549849	.0730	3	3/4	4
50	549850	.0700	3	3/4	4
51	549851	.0670	3	3/4	4
52	549852	.0635	3	3/4	4
53	549853	.0595	3	3/4	4
54	549854	.0550	3	3/4	4
55	549855	.0520	3	3/4	4
56	549856	.0465	3	3/4	4
57	549857	.0430	3	3/4	4
58	549858	.0420	3	3/4	4
59	549859	.0410	3	3/4	4
60	549860	.0400	3	3/4	4
61	549861	.0390	2-1/2	1/2	3
62	549862	.0380	2-1/2	1/2	3
63	549863	.0370	2-1/2	1/2	3
64	549864	.0360	2-1/2	1/2	3
65	549865	.0350	2-1/2	1/2	3
66	549866	.0330	2-1/2	1/2	3
67	549867	.0320	2-1/2	1/2	3
68	549868	.0310	2-1/2	1/2	3
69	549869	.0292	2-1/2	1/2	3
70	549870	.0280	2-1/2	1/2	3
71	549871	.0260	2	3/8	3
72	549872	.0250	2	3/8	3
73	549873	.0240	2	3/8	3
74	549874	.0225	2	3/8	3
75	549875	.0210	2	3/8	3
76	549876	.0200	2	3/8	3
77	549877	.0180	2	3/8	3
78	549878	.0160	2	3/8	3
79	549879	.0145	2	3/8	3
80	549880	.0135	2	3/8	3