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Besly
Popular Special
Spiral Pointed Taps

High Speed Steel
Ground Thread

Spiral Pointed
2 and 3 Flute


Fractional Sizes:
1/4 | 5/16 | 3/8 | 7/16 | 15/32 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 1

Also available...

Standard Sizes: Catl No. 4120


Left Hand: Catl No. 4120LH

Catalog Number: 4120

Besly Standard Spiral Pointed Taps

Besly
Popular Special Spiral Pointed Taps have angular flutes at the front end of the tap to propel the chips ahead of the tap. This feature plus the excellent shearing action of the flute make spiral pointed taps ideal for production tapping of thru holes.

Please call 800 435-2965 for current net pricing.

Note: Click the EDP No to check availability.

   
All dimensions are in inches.
  Besly Popular Special
Spiral Pointed
Taps
Catl No. 4120
Fractional Sizes
 
   
  Besly Surface Treatments Besly Drill Selector
Tap Size
& TPI
No. of Flutes Chamfer Type P.D. Limits Special
Features
Pkg
Qty*
EDP No Basic Pitch Dia. Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
1/4-20 2 Plug H3 4" ext   14573 .2175 4 1 .255 5/16 .191
1/4-20 2 Plug H3 6" ext   19545 .2175 6 1 .255 5/16 .191
1/4-20 2 Plug H3 6" ext
sm shk
  14574 .2175 6 1 .180 5/16 .191
1/4-20 2 Plug H11 +.005   15654 .2175 2-1/2 1 .255 5/16 .191
1/4-24 2 Plug H3     15986 .2229 2-1/2 1 .255 5/16 .191
1/4-28 2 Plug H3 6" ext   19546 .2268 6 1 .255 5/16 .191
1/4-28 2 Plug H3 6" ext
sm shk
  11869 .2268 6 1 .180 5/16 .191
1/4-28 2 Plug H5     11872 .2268 2-1/2 1 .255 5/16 .191
1/4-28 2 Plug H11 +.005   11938 .2268 2-1/2 1 .255 5/16 .191
1/4-32 2 Plug H3     15660 .2297 2-1/2 1 .255 5/16 .191
1/4-36 2 Plug H2     15666 .2320 2-1/2 1 .255 5/16 .191
1/4-36 2 Plug H3     15665 .2320 2-1/2 1 .255 5/16 .191
1/4-40 2 Plug H2     15670 .2338 2-1/2 1 .255 5/16 .191
5/16-18 2 Plug H3 4" ext   19530 .2764 4 1-1/8 .318 3/8 .238
5/16-18 2 Plug H3 6" ext   19547 .2764 6 1-1/8 .318 3/8 .238
5/16-18 2 Plug H3 6" ext
sm shk
  19531 .2764 6 1-1/8 .220 3/8 .238
5/16-18 2 Plug H11 +.005   15661 .2764 2-1/2 1-1/8 .318 3/8 .238
5/16-24 2 Plug H3 6" ext   19548 .2854 6 1-1/8 .318 3/8 .238
5/16-24 2 Plug H3 6" ext
sm shk
  12069 .2854 6 1-1/8 .220 3/8 .238
5/16-24 2 Plug H5     12071 .2854 2-1/2 1-1/8 .318 3/8 .238
5/16-24 2 Plug H11 +.005   12138 .2854 2-1/2 1-1/8 .318 3/8 .238
5/16-32 2 Plug H3     15662 .2922 2-1/2 1-1/8 .318 3/8 .238
 * No standard package quantity. Price determined by quantity ordered. Go to the top of this page.
Tap Size
& TPI
No. of Flutes Chamfer Type P.D. Limits Special
Features
Pkg
Qty*
EDP No Basic Pitch Dia. Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
3/8-16 2 Plug H3     12100 .3344 2-15/16 1-1/4 .381 7/16 .286
3/8-16 3 Plug H3 4" ext   12174 .3344 4 1-1/4 .381 7/16 .286
3/8-16 3 Plug H3 6" ext   19549 .3344 6 1-1/4 .381 7/16 .286
3/8-16 3 Plug H3 6" ext
sm shk
  19555 .3344 6 1-1/4 .275 7/16 .286
3/8-16 3 Plug H5 6" ext   12176 .3344 6 1-1/4 .381 7/16 .286
3/8-16 3 Plug H11 +.005   15651 .3344 2-15/16 1-1/4 .381 7/16 .286
3/8-24 3 Plug H3 6" ext   19550 .3479 6 1-1/4 .381 7/16 .286
3/8-24 3 Plug H5     12274 .3479 2-15/16 1-1/4 .381 7/16 .286
3/8-24 3 Plug H11 +.005   12273 .3479 2-15/16 1-1/4 .381 7/16 .286
3/8-32 3 Plug H3     15663 .3547 2-15/16 1-1/4 .381 7/16 .286
7/16-14 3 Plug H3 6" ext   12365 .3911 6 1-7/16 .323 13/32 .242
7/16-14 3 Plug H11 +.005   19158 .3911 3-5/32 1-7/16 .323 13/32 .242
7/16-20 3 Plug H3 6" ext   14841 .4050 6 1-7/16 .323 13/32 .242
7/16-20 3 Plug H11 +.005   12446 .4050 3-5/32 1-7/16 .323 13/32 .242
15/32-32 3 Plug H3     12447 .4485 3-3/8 1-21-32 .3367 7/16 .275
1/2-13 3 Plug H3 6" ext   14874 .4500 6 1-21-32 .367 7/16 .275
1/2-13 3 Plug H11 +.005   15664 .4500 3-3/8 1-21/32 .367 7/16 .275
1/2-20 3 Plug H3 6" ext   12653 .4675 6 1-21/32 .367 7/16 .275
1/2-20 3 Plug H11 +.005   12656 .4675 3-3/8 1-21/32 .367 7/16 .275
1/2-28 3 Plug H3     12657 .4768 3-3/8 1-21/32 .367 7/16 .275
 * No standard package quantity. Price determined by quantity ordered. Go to the top of this page.
Tap Size
& TPI
No. of Flutes Chamfer Type P.D. Limits Special
Features
Pkg
Qty*
EDP No Basic Pitch Dia. Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
9/16-12 3 Plug H3     12661 .5084 3-19/32 1-21/32 .429 1/2 .322
9/16-18 3 Plug H3     12658 .5264 3-19/32 1-21/32 .429 1/2 .322
9/16-18 3 Plug H5     12659 .5264 3-19/32 1-21/32 .429 1/2 .322
9/16-18 3 Plug H11 +.005   12662 .5264 3-19/32 1-21/32 .429 1/2 .322
5/8-11 3 Plug H3 6" ext   12863 .5660 6 1-13/16 .480 9/16 .360
5/8-11 3 Plug H11 +.005   19159 .5660 3-13/16 1-13/16 .480 9/16 .360
5/8-18 3 Plug H5     15643 .5889 3-13/16 1-13/16 .480 9/16 .360
3/4-10 3 Plug H3 6" ext   13029 .6851 6 2 .590 11/16 .442
3/4-10 3 Plug H11 +.005   10013 .6851 4-1/4 2 .590 11/16 .442
3/4-16 3 Plug H5     15644 .7094 4-1/4 2 .590 11/16 .442
7/8-9 3 Plug H4     10065 .8028 4-11/16 2-7/32 .697 3/4 .523
7/8-14 3 Plug H4     10072 .8286 4-11/16 2-7/32 .697 3/4 .523
1-8 3 Plug H4     10068 .9188 5-1/8 2-1/2 .800 13/16 .600
1-8 3 Plug H11 +.005   10017 .9188 5-1/8 2-1/2 .800 13/16 .600
1-14 3 Plug H4     10073 .9536 5-1/8 2-1/2 .800 13/16 .600
 * No standard package quantity. Price determined by quantity ordered. Go to the top of this page.