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Besly Special Purpose
Piloted Taps

High Speed Steel
Ground Thread

Straight Flute
4 Flute


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

 Catalog Number: 4111P

Besly Special Purpose Taps for Cast Iron     
These Besly Special Purpose Piloted Taps help locate the workpiece for tapping especially when holes enter at an angle. The pilot acts as a locator and guide, eliminates special fixtures and reduces tap breakage. Pilot diameters will fit holes drilled for 75% thread height.

Please call 800 435-2965 for current prices.

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All dimensions are in inches.                 
  Besly Special Purpose
Piloted Taps
Catl No. 4111P
Fractional Sizes		    
 
Besly Surface Treatments Besly Drill Selector
Tap Size
& TPI		 No. of Flutes Cham Type P.D. Limits Surface Treat EDP No Pkg Qty Basic Pitch Dia. Overall Length
A		 Thread Length
B		 Shank Dia.
C		 Square Length
D		 Square Size
E
1/4-20 4 Plug H3   10436 12 .2175 2-1/2 1 .255 5/16 .191
5/16-18 4 Plug H3   10437 12 .2764 2-1/8 1-1/8 .318 3/8 .238
3/8-16 4 Plug H3   10438 12 .3344 2-15/16 1-1/4 .381 7/16 .286
7/16-14 4 Plug H3   10439 12 .3911 3-5/32 1-7/16 .323 11/32 .242
1/2-13 4 Plug H3   10446 12 .4500 3-3/8 1-21-32 .367 7/16 .275
1/2-20 4 Plug H3   10447 12 .4675 3-3/8 1-21/32 .367 7/16 .275
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Sales Office  16200 Woodmint Lane  South Beloit, IL 61080  (815) 389-2231  fax (815) 389-1339  sales@besly.com
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