Besly Drills - Catl No T-218-TF

Besly Turboflute
Extra Length
Twist Drills

High Speed Steel
Straight Shank
Bright Finish

Wire Gage Sizes:
40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1

Letter Sizes:
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Fractional Sizes:
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 | 33/64 | 17/32 | 35/64 | 9/16 | 37/64 | 19/32 | 39/64 | 5/8 | 21/32 | 11/16 | 23/32 | 3/4

Catalog Number: T-218-TF

Besly Turboflute Extra Length Twist Drills

Besly Turboflute drills handle hole depths of up to 12 times their own diameter in a single pass. The unique flute design produces short chips, that pass out of the hole with no clogging or woodpeckering. These drills are designed for drilling materials such as steels below 120,000 psi ultimate tensile strength and iron castings.

Please call 800 435-2965 for current net pricing.

Note: Click the EDP No to check availability.

Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
40	.0980	20908	12	6	4	5/32	.070	.073
39	.0995	20907	12	6	4	5/32	.070	.073
38	.1015	20906	12	6	4	5/32	.070	.073
37	.1040	20899	12	6	4	5/32	.070	.073
36	.1065	20898	12	6	4	5/32	.070	.073
35	.1100	20897	12	6	4	3/16	.081	.085
34	.1110	20896	12	6	4	3/16	.081	.085
33	.1130	20889	12	6	4	3/16	.081	.085
32	.1160	20888	12	6	4	3/16	.081	.085
31	.1200	20887	12	6	4	3/16	.081	.085
30	.1285	20442	12	6	4	9/32	.090	.094
30	.1285	20384	12	8	5-1/2	9/32	.090	.094
29	.1360	20443	12	6	4	9/32	.090	.094
29	.1360	20385	12	8	5-1/2	9/32	.090	.094
28	.1405	20445	12	6	4	9/32	.090	.094
28	.1405	20390	12	8	5-1/2	9/32	.090	.094
27	.1440	20450	12	6	4	9/32	.090	.094
27	.1440	20391	12	8	5-1/2	9/32	.090	.094
26	.1470	20451	12	6	4	9/32	.090	.094
26	.1470	20392	12	8	5-1/2	9/32	.090	.094
25	.1495	20452	12	6	4	9/32	.090	.094
25	.1495	20393	12	8	5-1/2	9/32	.090	.094

Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
24	.1520	20453	12	6	4	9/32	.090	.094
24	.1520	20394	12	8	5-1/2	9/32	.090	.094
23	.1540	20454	12	6	4	9/32	.090	.094
23	.1540	20395	12	8	5-1/2	9/32	.090	.094
22	.1570	20455	12	6	4	9/32	.090	.094
22	.1570	20400	12	8	5-1/2	9/32	.090	.094
21	.1590	20460	12	6	4	9/32	.090	.094
21	.1590	20401	12	8	5-1/2	9/32	.090	.094
20	.1610	20461	12	6	4	9/32	.090	.094
20	.1610	20402	12	8	5-1/2	9/32	.090	.094
19	.1660	20462	12	6	4	9/32	.090	.094
19	.1660	20403	12	8	5-1/2	9/32	.090	.094
18	.1695	20463	12	6	4	9/32	.090	.094
18	.1695	20412	12	8	5-1/2	9/32	.090	.094
17	.1730	20464	12	6	4	9/32	.090	.094
17	.1730	20413	12	8	5-1/2	9/32	.090	.094
16	.1770	20465	12	6	4	9/32	.090	.094
16	.1770	20414	12	8	5-1/2	9/32	.090	.094
15	.1800	20470	12	6	4	9/32	.090	.094
15	.1800	20415	12	8	5-1/2	9/32	.090	.094
14	.1820	20471	12	6	4	9/32	.090	.094
14	.1820	20420	12	8	5-1/2	9/32	.090	.094
13	.1850	20472	12	6	4	9/32	.090	.094
13	.1850	20421	12	8	5-1/2	9/32	.090	.094

Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Wire Gage Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
12	.1890	20886	12	6	4	5/16	.118	.122
12	.1890	20422	12	8	5-1/2	5/16	.118	.122
11	.1910	20839	12	6	4	5/16	.118	.122
11	.1910	20423	12	8	5-1/2	5/16	.118	.122
10	.1935	20838	12	6	4	5/16	.118	.122
10	.1935	20424	12	8	5-1/2	5/16	.118	.122
9	.1960	20837	12	6	4	5/16	.118	.122
9	.1960	20425	12	8	5-1/2	5/16	.118	.122
8	.1990	20836	12	6	4	5/16	.118	.122
8	.1990	20430	12	8	5-1/2	5/16	.118	.122
7	.2010	20829	12	6	4	5/16	.118	.122
7	.2010	20431	12	8	5-1/2	5/16	.118	.122
6	.2040	20828	12	6	4	5/16	.118	.122
6	.2040	20432	12	8	5-1/2	5/16	.118	.122
5	.2055	20827	12	6	4	5/16	.118	.122
5	.2055	20433	12	8	5-1/2	5/16	.118	.122
4	.2090	20826	12	6	4	5/16	.118	.122
4	.2090	20434	12	8	5-1/2	5/16	.118	.122
3	.2130	20809	12	6	4	5/16	.118	.122
3	.2130	20435	12	8	5-1/2	5/16	.118	.122
2	.2210	20808	12	6	4	5/16	.118	.122
2	.2210	20440	12	8	5-1/2	5/16	.118	.122
1	.2280	20807	12	6	4	5/16	.118	.122
1	.2280	20441	12	8	5-1/2	5/16	.118	.122

Letter Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Letter Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
A	.2340	29978	12	6	4	5/16	.118	.122
B	.2380	29979	12	6	4	5/16	.118	.122
C	.2420	29980	12	6	4	5/16	.118	.122
D	.2460	29981	12	6	4	5/16	.118	.122
E	.2500	29929	12	6	4	5/16	.158	.162
F	.2570	29982	12	6	4	11/32	.158	.162
G	.2610	29983	12	6	4	11/32	.158	.162
H	.2660	29984	12	6	4	11/32	.158	.162
I	.2720	29985	12	6	4	11/32	.158	.162
J	.2770	29986	12	6	4	11/32	.158	.162
K	.2810	29987	12	6	4	11/32	.158	.162
L	.2900	29988	12	6	4	11/32	.158	.162
M	.2950	29989	6	6	4	11/32	.158	.162
N	.3020	29990	6	6	4	11/32	.158	.162
O	.3160	29991	6	6	4	3/8	.199	.203
P	.3230	29992	6	6	4	3/8	.199	.203
Q	.3320	29993	6	6	4	3/8	.199	.203
R	.3390	29994	6	6	4	3/8	.199	.203
S	.3480	29995	6	6	4	3/8	.199	.203
T	.3580	29996	6	6	4	3/8	.199	.203
U	.3680	29997	6	6	4	3/8	.199	.203
V	.3770	29998	6	6	4	7/16	.239	.243
W	.3860	29999	6	6	4	7/16	.239	.243
X	.3970	29900	6	6	4	7/16	.239	.243
Y	.4040	28999	6	6	4	7/16	.239	.243
Z	.4130	28998	6	6	4	7/16	.239	.243

Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
1/8	.1250	20005	12	8	5-1/2	9/32	.090	.094
1/8	.1250	20719	12	9	6-1/2	9/32	.090	.094
1/8	.1250	20749	12	10	7-1/2	9/32	.090	.094
1/8	.1250	20767	12	12	9	9/32	.090	.094
9/64	.1406	20010	12	8	5-1/2	9/32	.090	.094
9/64	.1406	20723	12	9	6-1/2	9/32	.090	.094
9/64	.1406	20756	12	10	7-1/2	9/32	.090	.094
9/64	.1406	20768	12	12	9	9/32	.090	.094
5/32	.1562	20011	12	8	5-1/2	9/32	.090	.094
5/32	.1562	20726	12	9	6-1/2	9/32	.090	.094
5/32	.1562	20757	12	10	7-1/2	9/32	.090	.094
5/32	.1562	20769	12	12	9	9/32	.090	.094
11/64	.1719	20012	12	8	5-1/2	9/32	.090	.094
11/64	.1719	20727	12	9	6-1/2	9/32	.090	.094
11/64	.1719	20758	12	10	7-1/2	9/32	.090	.094
11/64	.1719	20776	12	12	9	9/32	.090	.094
3/16	.1875	20013	12	8	5-1/2	9/32	.090	.094
3/16	.1875	20728	12	9	6-1/2	9/32	.090	.094
3/16	.1875	20759	12	10	7-1/2	9/32	.090	.094
3/16	.1875	20777	12	12	9	9/32	.090	.094
13/64	.2031	20014	12	8	5-1/2	5/16	.118	.122
13/64	.2031	20729	12	9	6-1/2	5/16	.118	.122
13/64	.2031	20764	12	10	7-1/2	5/16	.118	.122
13/64	.2031	20778	12	12	9	5/16	.118	.122

Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
7/32	.2188	20015	12	8	5-1/2	5/16	.118	.122
7/32	.2188	20736	12	9	6-1/2	5/16	.118	.122
7/32	.2188	20765	12	10	7-1/2	5/16	.118	.122
7/32	.2188	20779	12	12	9	5/16	.118	.122
15/64	.2344	20020	12	8	5-1/2	5/16	.118	.122
15/64	.2344	20737	12	9	6-1/2	5/16	.118	.122
15/64	.2344	20766	12	10	7-1/2	5/16	.118	.122
15/64	.2344	20786	12	12	9	5/16	.118	.122
1/4	.2500	20680	12	8	5-1/2	5/16	.118	.122
1/4	.2500	20021	12	9	6-1/2	5/16	.118	.122
1/4	.2500	20034	12	10	7-1/2	5/16	.118	.122
1/4	.2500	20787	12	12	9	5/16	.118	.122
17/64	.2656	20682	12	8	5-1/2	11/32	.158	.162
17/64	.2656	20022	12	9	6-1/2	11/32	.158	.162
17/64	.2656	20040	12	10	7-1/2	11/32	.158	.162
17/64	.2656	20788	12	12	9	11/32	.158	.162
9/32	.2812	20683	12	8	5-1/2	11/32	.158	.162
9/32	.2812	20023	12	9	6-1/2	11/32	.158	.162
9/32	.2812	20042	12	10	7-1/2	11/32	.158	.162
9/32	.2812	20789	12	12	9	11/32	.158	.162

Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
19/64	.2969	20684	6	8	5-1/2	11/32	.158	.162
19/64	.2969	20024	6	9	6-1/2	11/32	.158	.162
19/64	.2969	20052	6	10	7-1/2	11/32	.158	.162
19/64	.2969	20796	6	12	9	11/32	.158	.162
5/16	.3125	20685	6	8	5-1/2	11/32	.158	.162
5/16	.3125	20025	6	9	6-1/2	11/32	.158	.162
5/16	.3125	20502	6	10	7-1/2	11/32	.158	.162
5/16	.3125	20654	6	12	9	11/32	.158	.162
21/64	.3281	20690	6	8	5-1/2	3/8	.199	.203
21/64	.3281	20030	6	9	6-1/2	3/8	.199	.203
21/64	.3281	20503	6	10	7-1/2	3/8	.199	.203
21/64	.3281	20798	6	12	9	3/8	.199	.203
11/32	.3438	20691	6	8	5-1/2	3/8	.199	.203
11/32	.3438	20031	6	9	6-1/2	3/8	.199	.203
11/32	.3438	20072	6	10	7-1/2	3/8	.199	.203
11/32	.3438	20799	6	12	9	3/8	.199	.203
23/64	.3594	20670	6	8	5-1/2	3/8	.199	.203
23/64	.3594	20032	6	9	6-1/2	3/8	.199	.203
23/64	.3594	20073	6	10	7-1/2	3/8	.199	.203
23/64	.3594	20806	6	12	9	3/8	.199	.203
3/8	.3750	20692	6	8	5-1/2	3/8	.199	.203
3/8	.3750	20738	6	9	6-1/2	3/8	.199	.203
3/8	.3750	20473	6	10	7-1/2	3/8	.199	.203
3/8	.3750	20075	6	12	9	3/8	.199	.203

Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
25/64	.3906	20693	6	8	5-1/2	3-3/4	.239	.243
25/64	.3906	20739	6	9	6-1/2	3-3/4	.239	.243
25/64	.3906	20474	6	10	7-1/2	3-3/4	.239	.243
25/64	.3906	20113	6	12	9	3-3/4	.239	.243
13/32	.4062	20716	6	8	5-1/2	3-7/8	.239	.243
13/32	.4062	20746	6	9	6-1/2	3-7/8	.239	.243
13/32	.4062	20475	6	10	7-1/2	3-7/8	.239	.243
13/32	.4062	20504	6	12	9	3-7/8	.239	.243
27/64	.4219	20717	6	8	5-1/2	3-5/16	.239	.243
27/64	.4219	20747	6	9	6-1/2	3-5/16	.239	.243
27/64	.4219	20480	6	10	7-1/2	3-5/16	.239	.243
27/64	.4219	20123	6	12	9	3-5/16	.239	.243
7/16	.4375	20718	6	8	5-1/2	4-1/16	.239	.243
7/16	.4375	20748	6	9	6-1/2	4-1/16	.239	.243
7/16	.4375	20481	6	10	7-1/2	4-1/16	.239	.243
7/16	.4375	20134	6	12	9	4-1/16	.239	.243
29/64	.4531	20482	6	10	7-1/2	4-3/16	.239	.243
29/64	.4531	20135	6	12	9	4-3/16	.239	.243
15/32	.4688	20483	6	10	7-1/2	4-5/16	.239	.243
15/32	.4688	20142	6	12	9	4-5/16	.239	.243
31/64	.4844	20484	6	10	7-1/2	4-3/8	.297	.303
31/64	.4844	20155	6	12	9	4-3/8	.297	.303
1/2	.5000	20485	6	10	7-1/2	4-1/2	.297	.303
1/2	.5000	20310	6	12	9	4-1/2	.297	.303

Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Tang Thickness D
Fractional Size	Decimal Equiv.	EDP No	Pkg Qty	Overall Length A	Flute Length B	Tang Length C	Min.	Max.
33/64	.5156	20311	1	12	9	1/2	.297	.303
17/32	.5312	20312	1	12	9	1/2	.297	.303
35/64	.5469	20313	1	12	9	1/2	.297	.303
9/16	.5625	20314	1	12	9	1/2	.297	.303
37/64	.5781	20315	1	12	9	9/16	.367	.373
19/32	.5938	20320	1	12	9	9/16	.367	.373
39/64	.6094	20321	1	12	9	9/16	.367	.373
5/8	.6250	20322	1	12	9	9/16	.367	.373
21/32	.6562	20323	1	12	9	9/16	.367	.373
11/16	.6875	20324	1	12	9	5/8	.437	.443
23/32	.7188	20325	1	12	9	5/8	.437	.443
3/4	.7500	20383	1	12	9	5/8	.437	.443



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				All dimensions are in inches.
	Besly TurboFlute Extra Length Twist Drills Catl No. T-218-TF Wire Gage Sizes