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Besly Turboflute
Taper Length
Twist Drills

High Speed Steel
Straight Shank
Long Flute
Surface Treated

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:
1/16 | 5/64 | 3/32 | 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 | 33/64 | 17/32 | 9/16 | 19/32 | 5/8 | 21/32 | 11/16 | 23/32 | 3/4

Catalog Number: T-216-TF

Besly Turboflute Taper Length Twist Drills

Besly Turboflute drills have heavy duty parabolic profiled flutes for easy chip flow. Designed for automotive and other high volume metal working industries, they give longer life and better drilled hole quality while allowing increased feed rates.

The split point design seats itself and holds centers. These heavier web drills are ideal for use in stringy, low and medium strength steels below 120,000 psi ultimate tensile strength, and for use in exotic and difficult-to-machine materials, ferrous and nonferrous.

Please call 800 435-2965 for current net pricing.

Note: Click the EDP No to check availability.

 
All dimensions are in inches.
  Besly TurboFlute
Taper Length
Twist Drills

Catl No. T-216-TF
Wire Gage Sizes
 
 
   
Wire
Gage
Size
Decimal
Equivalent
EDP No Pkg Qty Overall
Length
A
Flute
Length
B
Tang
Length
C
Tang
Thickness
D
Min. Max.
40 .0980 28605 12 4-5/8 3-1/8 5/32 .070 .073
39 .0995 28606 12 4-5/8 3-1/8 5/32 .070 .073
38 .1015 28607 12 4-5/8 3-1/8 5/32 .070 .073
37 .1040 28608 12 4-5/8 3-1/8 5/32 .070 .073
36 .1065 28609 12 4-5/8 3-1/8 5/32 .070 .073
35 .1100 28610 12 5-1/8 3-3/8 3/16 .081 .085
34 .1110 28611 12 5-1/8 3-3/8 3/16 .081 .085
33 .1130 28612 12 5-1/8 3-3/8 3/16 .081 .085
32 .1160 28613 12 5-1/8 3-3/8 3/16 .081 .085
31 .1200 28614 12 5-1/8 3-3/8 3/16 .081 .085
30 .1285 28615 12 5-3/8 3-5/8 9/32 .090 .094
29 .1360 28616 12 5-3/8 3-5/8  9/32 .090 .094
28 .1405 28617 12 5-3/8 3-5/8 9/32 .090 .094
27 .1440 28618 12 5-3/8 3-3/4 9/32 .090 .094
26 .1470 28619 12 5-3/8 3-3/4 9/32 .090 .094
25 .1495 28620 12 5-3/8 3-3/4 9/32 .090 .094
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Wire
Gage
Size
Decimal
Equivalent
EDP No Pkg Qty Overall
Length
A
Flute
Length
B
Tang
Length
C
Tang
Thickness
D
Min. Max.
24 .1520 28621 12 5-3/8 3-3/4 9/32 .090 .094
23 .1540 28622 12 5-3/8 3-3/4 9/32 .090 .094
22 .1570 28623 12 5-3/4 4-1/8 9/32 .090 .094
21 .1590 28624 12 5-3/4 4-1/8 9/32 .090 .094
20 .1610 28625 12 5-3/4 4-1/8 9/32 .090 .094
19 .1660 28626 12 5-3/4 4-1/8 9/32 .090 .094
18 .1695 28627 12 5-3/4 4-1/8 9/32 .090 .094
17 .1730 28628 12 5-3/4 4-1/8 9/32 .090 .094
16 .1770 28629 12 5-3/4 4-1/8 9/32 .090 .094
15 .1800 28630 12 5-3/4 4-1/8 9/32 .090 .094
14 .1820 28631 12 5-3/4 4-1/8 9/32 .090 .094
13 .1850 28632 12 5-3/4 4-1/8 9/32 .090 .094
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Wire
Gage
Size
Decimal
Equivalent
EDP No Pkg Qty Overall
Length
A
Flute
Length
B
Tang
Length
C
Tang
Thickness
D
Min. Max.
12 .1890 28633 12 6 4-3/8 5/16 .118 .122
11 .1910 28634 12 6 4-3/8 5/16 .118 .122
10 .1935 28635 12 6 4-3/8 5/16 .118 .122
9 .1960 28636 12 6 4-3/8 5/16 .118 .122
8 .1990 28637 12 6 4-3/8 5/16 .118 .122
7 .2010 28638 12 6 4-3/8 5/16 .118 .122
6 .2040 28639 12 6 4-3/8 5/16 .118 .122
5 .2055 28640 12 6 4-3/8 5/16 .118 .122
4 .2090 28641 12 6 4-3/8 5/16 .118 .122
3 .2130 28642 12 6 4-3/8 5/16 .118 .122
2 .2210 28643 12 6-1/8 4-13/16 5/16 .118 .122
1 .2280 28644 12 6-1/8 4-13/16 5/16 .118 .122
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All dimensions are in inches.
  Besly TurboFlute
Taper Length
Twist Drills

Catl No. T-216-TF
Letter Sizes
 
 
   
Letter
Size
Decimal
Equivalent
EDP No Pkg Qty Overall
Length
A
Flute
Length
B
Tang
Length
C
Tang
Thickness
D
Min. Max.
A .2340 28645 12 6-1/8 4-13/16 5/16 .118 .122
B .2380 28646 12 6-1/8 4-13/16 5/16 .118 .122
C .2420 28647 12 6-1/8 4-13/16 5/16 .118 .122
D .2460 28648 12 6-1/8 4-13/16 5/16 .118 .122
F .2570 28649 12 6-1/4 5 11/32 .158 .162
G .2610 28650 12 6-1/4 5 11/32 .158 .162
H .2660 28651 12 6-1/4 5 11/32 .158 .162
I .2720 28652 12 6-1/4 5 11/32 .158 .162
J .2770 28653 12 6-1/4 5 11/32 .158 .162
K .2810 28654 12 6-1/4 5 11/32 .158 .162
L .2900 28655 12 6-3/8 5-1/8 11/32 .158 .162
M .2950 28656 6 6-3/8 5-1/8 11/32 .158 .162
N .3020 28657 6 6-3/8 5-1/8 11/32 .158 .162
O .3160 28658 6 6-1/2 5-1/4 3/8 .199 .203
P .3230 28659 6 6-1/2 5-1/4 3/8 .199 .203
Q .3320 28660 6 6-1/2 5-1/4 3/8 .199 .203
R .3390 28661 6 6-1/2 5-1/4 3/8 .199 .203
S .3480 28662 6 6-3/4 5-3/8 3/8 .199 .203
T .3580 28663 6 6-3/4 5-3/8 3/8 .199 .203
U .3680 28664 6 6-3/4 5-3/8 3/8 .199 .203
V .3770 28665 6 7 5-5/8 7/16 .239 .243
W .3860 28666 6 7 5-5/8 7/16 .239 .243
X .3970 28667 6 7 5-5/8 7/16 .239 .243
Y .4040 28668 6 7 5-5/8 7/16 .239 .243
Z .4130 28669 6 7-1/4 5-11/16 7/16 .239 .243
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All dimensions are in inches.
  Besly TurboFlute
Taper Length
Twist Drills

Catl No. T-216-TF
Fractional Sizes
 
 
   
Fractional
Size
Decimal
Equivalent
EDP No Pkg Qty Overall
Length
A
Flute
Length
B
Tang
Length
C
Tang
Thickness
D
Min. Max.
1/16 .0625 28500 12 3 2      
5/64 .0781 28501 12 3-3/4 2-1/2      
3/32 .0938 28502 12 4-1/4 2-13/16      
7/64 .1094 28503 12 4-5/8 3-1/8      
1/8 .1250 28504 12 5-1/8 3-3/8 9/32 .090 .094
9/64 .1406 28505 12 5-3/8 3-5/8 9/32 .090 .094
5/32 .1562 28506 12 5-3/8 3-3/4 9/32 .090 .094
11/64 .1719 27998 12 5-3/4 4-1/8 9/32 .090 .094
3/16 .1875 27999 12 5-3/4 4-1/8 9/32 .090 .094
13/64 .2031 28507 12 6 4-3/8 5/16 .118 .122
7/32 .2188 28508 12 6 4-3/8 5/16 .118 .122
15/64 .2344 28509 12 6-1/8 4-13/16 5/16 .118 .122
1/4 .2500 28510 12 6-1/8 4-13/16 5/16 .118 .122
17/64 .2656 28511 12 6-1/4 5 11/32 .158 .162
9/32 .2812 28512 12 6-1/4 5 11/32 .158 .162
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Fractional
Size
Decimal
Equivalent
EDP No Pkg Qty Overall
Length
A
Flute
Length
B
Tang
Length
C
Tang
Thickness
D
Min. Max.
19/64 .2969 28513 6 6-3/8 5-1/8 11/32 .158 .162
5/16 .3125 28514 6 6-3/8 5-1/8 11/32 .158 .162
21/64 .3281 28515 6 6-1/2 5-1/4 3/8 .199 .203
11/32 .3438 28516 6 6-1/2 5-1/4 3/8 .199 .203
23/64 .3594 28517 6 6-3/4 5-3/8 3/8 .199 .203
3/8 .3750 28518 6 6-3/4 5-3/8 3/8 .199 .203
25/64 .3906 28519 6 7 5-5/8 7/16 .239 .243
13/32 .4062 28520 6 7 5-5/8 7/16 .239 .243
27/64 .4219 28521 6 7-1/4 5-11/16 7/16 .239 .243
7/16 .4375 28522 6 7-1/4 5-11/16 7/16 .239 .243
29/64 .4531 28523 6 7-1/2 5-3/4 7/16 .239 .243
15/32 .4688 28524 6 7-1/2 5-3/4 7/16 .239 .243
31/64 .4844 28525 6 7-3/4 5-3/4 1/2 .297 .303
1/2 .5000 28526 6 7-3/4 5-3/4 1/2 .297 .303
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Fractional
Size
Decimal
Equivalent
EDP No Pkg Qty Overall
Length
A
Flute
Length
B
Tang
Length
C
Tang
Thickness
D
Min. Max.
33/64 .5156 28527 1 8 6 1/2 .297 .303
17/32 .5312 28528 1 8 6 1/2 .297 .303
9/16 .5625 28529 1 8-1/4 6-1/4 1/2 .297 .303
19/32 .5938 28530 1 8-3/4 6-1/2 9/16 .367 .373
5/8 .6250 28531 1 8-3/4 6-1/2 9/16 .367 .373
21/32 .6562 28532 1 9 6-3/4 9/16 .367 .373
11/16 .6875 28533 1 9-1/4 6-7/8 5/8 .443 .443
23/32 .7188 28534 1 9-1/2 7-1/8 5/8 .443 .443
3/4 .7500 28535 1 9-3/4 7-3/8 5/8 .443 .443
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