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Besly
Popular Special
Straight Flute Taps

High Speed Steel
Ground Thread

Left Hand

Straight Flute
2, 3, 4 and 6 Flute


Metric Sizes:

M4 | M4.5 | M5 | M6 | M7 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 | M24 | M27 | M30


Also available...

Standard Sizes: Catl No. 4124

Popular Specials: Catl No. 4124

Catalog Number: 4124LH

Besly Standard Turbo Cut Taps

Besly Popular Special Straight Flute Taps are for general use in production tapping or hand operations. These tools are manufactured by Besly to meet the growing demand for metric sizes.

Choose the plug chamfer style for thru hole applications or blind holes with sufficient clearance. The bottoming style is used for threading deep or blind holes to the bottom. 

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
Straight Flute
Taps
Catl No. 4124LH
Metric Sizes
 
   
  Besly Surface Treatments Besly Drill Selector
Tap Size
& TPI
Inch
Equivalent
No. of Flutes Chamfer Type P.D. Limits Special Features Pkg
Qty*
EDP No Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
  M4 x 0.7 .1575 x 36.29 4 Taper D4 Left hand   18338 2-1/8 3/4 .168 1/4 .131
  M4 x 0.7 .1575 x 36.29 4 Plug D4 Left hand   18339 2-1/8 3/4 .168 1/4 .131
  M4 x 0.7 .1575 x 36.29 4 Bot D4 Left hand   18340 2-1/8 3/4 .168 1/4 .131
  M4.5 x 0.75 .1772 x 33.87 4 Taper D4 Left hand   18341 2-3/8 7/8 .194 1/4 .152
  M4.5 x 0.75 .1772 x 33.87 4 Plug D4 Left hand   18342 2-3/8 7/8 .194 1/4 .152
  M4.5 x 0.75 .1772 x 33.87 4 Bot D4 Left hand   18343 2-3/8 7/8 .194 1/4 .152
  M5 x 0.8 .1969 x 31.75 4 Taper D4 Left hand   18344 2-3/8 7/8 .194 1/4 .152
  M5 x 0.8 .1969 x 31.75 4 Plug D4 Left hand   18345 2-3/8 7/8 .194 1/4 .152
  M5 x 0.8 .1969 x 31.75 4 Bot D4 Left hand   18346 2-3/8 7/8 .194 1/4 .152
  M6 x 1.0 .2363 x 25.40 4 Taper D5 Left hand   18347 2-1/2 1 .255 5/16 .191
  M6 x 1.0 .2363 x 25.40 4 Plug D5 Left hand   18348 2-1/2 1 .255 5/16 .191
  M6 x 1.0 .2363 x 25.40 4 Bot D5 Left hand   18349 2-1/2 1 .255 5/16 .191
  M7 x 1.0 .2756 x 25.40 4 Taper D5 Left hand   18350 2-23/32 1-1/8 .318 3/8 .238
  M7 x 1.0 .2756 x 25.40 4 Plug D5 Left hand   19351 2-23/32 1-1/8 .318 3/8 .238
  M7 x 1.0 .2756 x 25.40 4 Bot D5 Left hand   18352 2-23/32 1-1/8 .318 3/8 .238
  M8 x 1.25 .3150 x 20.32 4 Taper D5 Left hand   18353 2-23/32 1-1/8 .318 3/8 .238
  M8 x 1.25 .3150 x 20.32 4 Plug D5 Left hand   18354 2-23/32 1-1/8 .318 3/8 .238
  M8 x 1.25 .3150 x 20.32 4 Bot D5 Left hand   18355 2-23/32 1-1/8 .318 3/8 .238
  M8 x 1.0 .3150 x 25.40 4 Taper D5 Left hand   18356 2-23/32 1-1/8 .318 3/8 .238
  M8 x 1.0 .3150 x 25.40 4 Plug D5 Left hand   18357 2-23/32 1-1/8 .318 3/8 .238
  M8 x 1.0 .3150 x 25.40 4 Bot D5 Left hand   18358 2-23/32 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
Inch
Equivalent
No. of Flutes Chamfer
Type
P.D. Limits Special
Features
Pkg
Qty*
EDP No Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
  M10 x 1.5 .3937 x 16.93 4 Taper D6 Left hand   18359 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.5 .3937 x 16.93 4 Plug D6 Left hand   18360 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.5 .3937 x 16.93 4 Bot D6 Left hand   18361 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.25 .3937 x 20.32 4 Taper D5 Left hand   18362 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.25 .3937 x 20.32 4 Plug D5 Left hand   18363 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.25 .3937 x 20.32 4 Bot D5 Left hand   18364 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.0 .3937 x 25.40 4 Taper D5 Left hand   18376 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.0 .3937 x 25.40 4 Plug D5 Left hand   18379 2-15/16 1-1/4 .381 7/16 .286
  M10 x 1.0 .3937 x 25.40 4 Bot D5 Left hand   18380 2-15/16 1-1/4 .381 7/16 .286
  M12 x 1.75 .4725 x 14.51 4 Taper D6 Left hand   18365 3-3/8 1-21/32 .367 7/16 .275
  M12 x 1.75 .4725 x 14.51 4 Plug D6 Left hand   18366 3-3/8 1-21/32 .367 7/16 .275
  M12 x 1.75 .4725 x 14.51 4 Bot D6 Left hand   18367 3-3/8 1-21/32 .367 7/16 .275
  M12 x 1.25 .4725 x 20.32 4 Taper D5 Left hand   18368 3-3/8 1-21/32 .367 7/16 .275
  M12 x 1.25 .4725 x 20.32 4 Plug D5 Left hand   18369 3-3/8 1-21/32 .367 7/16 .275
  M12 x 1.25 .4725 x 20.32 4 Bot D5 Left hand   18370 3-3/8 1-21/32 .367 7/16 .275
  M14 x 2 .5512 x 20.70 4 Taper D7 Left hand   18371 3-19/32 1-21/32 .429 1/2 .322
  M14 x 2 .5512 x 20.70 4 Plug D7 Left hand   18372 3-19/32 1-21/32 .429 1/2 .322
  M14 x 2 .5512 x 20.70 4 Bot D7 Left hand   18373 3-19/32 1-21/32 .429 1/2 .322
  M14 x 1.5 .5512 x 16.93 4 Taper D6 Left hand   18383 3-19/32 1-21/32 .429 1/2 .322
  M14 x 1.5 .5512 x 16.93 4 Plug D6 Left hand   18384 3-19/32 1-21/32 .429 1/2 .322
  M14 x 1.5 .5512 x 16.93 4 Bot D6 Left hand   18385 3-19/32 1-21/32 .429 1/2 .322
 * No standard package quantity. Price determined by quantity ordered. Go to the top of this page.
Tap Size
& TPI
Inch
Equivalent
No. of Flutes Chamfer Type P.D. Limits Special
Features
Pkg
Qty*
EDP No Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
  M16 x 2.0 .6300 x 12.70 4 Taper D7 Left hand   18386 3-13/16 1-13/16 .480 9/16 .360
  M16 x 2.0 .6300 x 12.70 4 Plug D7 Left hand   18387 3-13/16 1-13/16 .480 9/16 .360
  M16 x 2.0 .6300 x 12.70 4 Bot D7 Left hand   18388 3-13/16 1-13/16 .480 9/16 .360
  M16 x 1.5 .6300 x 16.93 4 Taper D6 Left hand   18389 3-13/16 1-13/16 .480 9/16 .360
  M16 x 1.5 .6300 x 16.93 4 Plug D6 Left hand   18390 3-13/16 1-13/16 .480 9/16 .360
  M16 x 1.5 .6300 x 16.93 4 Bot D6 Left hand   18391 3-13/16 1-13/16 .480 9/16 .360
  M18 x 2.5 .7087 x 10.16 4 Taper D7 Left hand   18392 4-1/32 1-13/16 .542 5/8 .406
  M18 x 2.5 .7087 x 10.16 4 Plug D7 Left hand   18393 4-1/32 1-13/16 .542 5/8 .406
  M18 x 2.5 .7087 x 10.16 4 Bot D7 Left hand   18394 4-1/32 1-13/16 .542 5/8 .406
  M18 x 1.5 .7087 x 16.93 4 Taper D6 Left hand   18395 4-1/32 1-13/16 .542 5/8 .406
  M18 x 1.5 .7087 x 16.93 4 Plug D6 Left hand   18396 4-1/32 1-13/16 .542 5/8 .406
  M18 x 1.5 .7087 x 16.93 4 Bot D6 Left hand   18397 4-1/32 1-13/16 .542 5/8 .406
  M20 x 2.5 .7875 x 10.16 4 Taper D7 Left hand   18398 4-15/32 2 .652 11/16 .489
  M20 x 2.5 .7875 x 10.16 4 Plug D7 Left hand   18399 4-15/32 2 .652 11/16 .489
  M20 x 2.5 .7875 x 10.16 4 Bot D7 Left hand   18400 4-15/32 2 .652 11/16 .489
  M20 x 1.5 .7875 x 16.93 4 Taper D6 Left hand   18401 4-15/32 2 .652 11/16 .489
  M20 x 1.5 .7875 x 16.93 4 Plug D6 Left hand   18402 4-15/32 2 .652 11/16 .489
  M20 x 1.5 .7875 x 16.93 4 Bot D6 Left hand   18403 4-15/32 2 .652 11/16 .489
 * No standard package quantity. Price determined by quantity ordered. Go to the top of this page.
Tap Size
& TPI
Inch
Equivalent
No. of Flutes Chamfer Type P.D. Limits Special
Features
Pkg
Qty*
EDP No Overall Length
A
Thread Length
B
Shank Dia.
C
Square Length
D
Square Size
E
  M22 x 2.5 .8662 x 10.16 4 Taper D7 Left hand   18404 4-11/16 2-7/32 .697 3/4 .523
  M22 x 2.5 .8662 x 10.16 4 Plug D7 Left hand   18405 4-11/16 2-7/32 .697 3/4 .523
  M22 x 2.5 .8662 x 10.16 4 Bot D7 Left hand   18406 4-11/16 2-7/32 .697 3/4 .523
  M22 x 1.5 .8662 x 16.93 4 Taper D6 Left hand   18407 4-11/16 2-7/32 .697 3/4 .523
  M22 x 1.5 .8662 x 16.93 4 Plug D6 Left hand   18408 4-11/16 2-7/32 .697 3/4 .523
  M22 x 1.5 .8662 x 16.93 4 Bot D6 Left hand   18409 4-11/16 2-7/32 .697 3/4 .523
  M24 x 3 .9449 x 8.47 4 Taper D8 Left hand   18414 4-29/32 2-7/32 .760 3/4 .570
  M24 x 3 .9449 x 8.47 4 Plug D8 Left hand   18415 4-29/32 2-7/32 .760 3/4 .570
  M24 x 3 .9449 x 8.47 4 Bot D8 Left hand   18416 4-29/32 2-7/32 .760 3/4 .570
  M24 x 2 .9449 x 12.70 4 Taper D7 Left hand   18417 4-29/32 2-7/32 .760 3/4 .570
  M24 x 2 .9449 x 12.70 4 Plug D7 Left hand   18418 4-29/32 2-7/32 .760 3/4 .570
  M24 x 2 .9449 x 12.70 4 Bot D7 Left hand   18419 4-29/32 2-7/32 .760 3/4 .570
  M27 x 3 1.0630 x 8.47 4 Taper D8 Left hand   18420 5-1/8 2-1/2 .896 7/8 .672
  M27 x 3 1.0630 x 8.47 4 Plug D8 Left hand   18421 5-1/8 2-1/2 .896 7/8 .672
  M27 x 3 1.0630 x 8.47 4 Bot D8 Left hand   18422 5-1/8 2-1/2 .896 7/8 .672
  M30 x 3.5 1.1812 x 7.26 4 Taper D9 Left hand   18423 5-7/16 2-9/16 1.021 1 .766
  M30 x 3.5 1.1812 x 7.26 4 Plug D9 Left hand   18424 5-7/16 2-9/16 1.021 1 .766
  M30 x 3.5 1.1812 x 7.26 4 Bot D9 Left hand   18425 5-7/16 2-9/16 1.021 1 .766
 * No standard package quantity. Price determined by quantity ordered. Go to the top of this page.