Besly Drills - Catalog No. T-190

Besly Screw Machine
Aircraft Drill, Type C
Twist Drills

High Speed Steel
Straight Shank
Surface Treated

Wire Gage Sizes:
40-30 | 29-20 | 19-10 | 9-1

Fractional Sizes:
7/64 | 1/8 | 9/64 | 5/32 | 11/64 | 3/16 | 13/64 | 7/32 | 15/64 | 1/4 | 17/64 | 9/32 | 19/64 | 5/16 | 21/64 | 11/32 | 23/64 | 3/8 | 25/64 | 13/32 | 27/64 | 7/16 | 29/64 | 15/32 | 31/64 | 1/2

Catalog Numbers: T-190

Besly Jobbers Length General Purpose Twist Drills These drills are made to the A.I.A. NAS-907 Type C Standards for Aircraft Drills. They are designed for portable power tools or machines for drilling holes in hard and tough sheet metal alloys of the heat resistant, stainless and titanium types. Of sturdy construction, their split point allows ease of penetration and has made them popular in automobile body work and in the construction industry.

Please call 800 435-2965 for current prices.

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Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B
40	.0980	23456	12	1-13/16	3/16
39	.0995	23457	12	1-13/16	13/16
38	.1015	23458	12	1-13/16	13/16
37	.1040	23459	12	1-13/16	13/16
36	.1065	23466	12	1-13/16	13/16
35	.1100	23467	12	1-7/8	7/8
34	.1110	23468	12	1-7/8	7/8
33	.1130	23469	12	1-7/8	17/8
32	.1160	23476	12	1-7/8	7/8
31	.1200	23477	12	1-7/8	7/8
30	.1285	23478	12	1-15/16	15/16
29	.1360	23479	12	1-15/16	15/16
28	.1405	23486	12	1-15/16	15/16
27	.1440	23487	12	2-1/16	1
26	.1470	23488	12	2-1/16	1
25	.1495	23489	12	2-1/16	1
24	.1520	23496	12	2-1/16	1
23	.1540	23497	12	2-1/16	1
22	.1570	23498	12	2-1/8	1-1/16
21	.1590	23499	12	2-1/8	1-1/16
20	.1610	23506	12	2-1/8	1-1/16

Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B
19	.1660	23507	12	2-1/8	1-1/16
18	.1695	23508	12	2-1/8	1-1/16
17	.1730	23509	12	2-3/16	1-1/8
16	.1770	23516	12	2-3/16	1-1/8
15	.1800	23517	12	2-3/16	1-1/8
14	.1820	23518	12	2-3/16	1-1/8
13	.1850	23519	12	2-3/16	1-1/8
12	.1890	23526	12	2-1/4	1-3/16
11	.1910	23527	12	2-1/4	1-3/16
10	.1935	23528	12	2-1/4	1-3/16
9	.1960	23529	12	2-1/4	1-3/16
8	.1990	23997	12	2-1/4	1-3/16
7	.2010	23998	12	2-1/4	1-3/16
6	.2040	23999	12	2-3/8	1-1/4
5	.2055	24006	12	2-3/8	1-1/4
4	.2090	23536	12	2-3/8	1-1/4
3	.2130	23537	12	2-3/8	1-1/4
2	.2210	23538	12	2-7/16	1-5/16
1	.2280	23539	12	2-7/16	1-5/16

Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B
7/64	.1094	23546	12	1-13/16	13/16
1/8	.1250	23547	12	1-7/8	7/8
9/64	.1406	23548	12	1-15/16	15/16
5/32	.1562	23549	12	2-1/16	1
11/64	.1719	23556	12	2-1/8	1-1/16
3/16	.1875	23557	12	2-3/16	1-1/8
13/64	.2031	23558	12	2-1/4	1-3/16
7/32	.2188	23559	12	2-3/8	1-1/4
15/64	.2344	23566	12	2-7/16	1-5/16
1/4	.2500	23567	12	2-1/2	1-3/8
17/64	.2656	23568	12	2-5/8	1-7/16
9/32	.2812	23569	12	2-11/16	1-1/2
19/64	.2969	23576	6	2-3/4	1-9/16
5/16	.3125	23577	6	2-13/16	1-5/8
21/64	.3281	23578	6	2-15/16	1-11/16
11/32	.3438	23579	6	3	1-11/16
23/64	.3594	23586	6	3-1/16	1-3/4
3/8	.3750	23587	6	3-1/8	1-13/16
25/64	.3906	23588	6	3-1/4	1-7/8
13/32	.4062	23589	6	3-5/16	1-15/16
27/64	.4219	23596	6	3-3/8	2
7/16	.4375	23597	6	3-7/16	2-1/16
29/64	.4531	23598	6	3-9/16	2-1/8
15/32	.4688	23599	6	3-5/8	2-1/8
31/64	.4844	23606	6	3-11/16	2-3/16
1/2	.5000	23607	6	3-3/4	2-1/4