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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 net pricing.

Note: Click the EDP No to check availability.
 

 
All dimensions are in inches.
  Besly Screw Machine
Aircraft Drill, Type C
Twist Drills
Catl No. T-190
 Wire Gage Sizes		  
 
   
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
  Go to the top of the page.
Wire Gage
Size		 Decimal
Equivalent		 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
  Go to the top of the page.
 

 
All dimensions are in inches.
  Besly Screw Machine
Aircraft Drill, Type C
 Twist Drills
Catl No. T-190
 Fractional Sizes		  
 
   
Fractional
Size		 Decimal
Equivalent		 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
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