Spiral Fluted Semi-Bottoming - ANSI Threads

Spiral Fluted Semi-Bottoming - ANSI Threads

Atlas High Performance Spiral Fluted Semi-Bottoming - ANSI Thread Taps

Spiral Flute Semi Bottoming - ANSI Threads - High Vanadium Powdered Metal

  • Best used for blind hole tapping applications
  •  Optimized for steel, steel alloys, stainless steels, and a variety of other steels up to 32 Rc
  • Steam Oxide finish provides decreased galling and increased lubricity in low carbon steels and gummy materials  
  • Features a 2 -2 1/2 thread chamfer
  • Semi-bottoming 45° helix
  • ALTIN is a high performance coating for milling, tapping and drilling in stainless steels, carbon steels, alloy steels, titanium and cast iron. This coating is extremely heat resistant and can be used with or without coolant. 

Speeds and Feed Info

Have a question or need help?

Call Customer Service at 908-98-ATLAS or email: Sales@atlascuttingtools.com
  • Compare SKU Vendor Size Shank Diameter Overall Length H Limit D Limit NC / NF Square Size Square Length Thread Length Number of Lube Grooves Number of Flutes Style Material Coating In Stock Price Quantity
    A55160 ACT 7/16-14 0.323 3-5/32 H3 4 Spiral Fluted Powdered Metal ALTiN 4
    $56.78
  • A78263 ACT 7/16-20 0.3230 3.1563 H3 3 Spiral Fluted Powdered Metal TiCN 13
    $67.74
  • A78279 ACT 7/16-14 0.3230 3.1563 H3 3 Spiral Fluted Powdered Metal ALTiN 17
    $67.74
  • A78280 ACT 7/16-20 0.3230 3.1563 H3 3 Spiral Fluted Powdered Metal ALTiN 15
    $56.78
  • A55143 ACT 1/2-13 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal Uncoated 33
    $55.78
  • A55144 ACT 1/2-20 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal Uncoated 47
    $55.78
  • A55162 ACT 1/2-13 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal ALTiN 13
    $80.36
  • A55163 ACT 1/2-20 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal ALTiN 15
    $80.36
  • A55181 ACT 1/2-13 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 12
    $60.04
  • A55182 ACT 1/2-20 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 18
    $60.04
  • A78229 ACT 1/2-13 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal Uncoated 16
    $55.78
  • A78230 ACT 1/2-20 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal Uncoated 29
    $55.78
  • A78265 ACT 1/2-13 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal TiCN 22
    $80.36
  • A78266 ACT 1/2-13 0.3670 3-3/8 H5 3 Spiral Fluted Powdered Metal TiCN 14
    $80.36
  • A78267 ACT 1/2-20 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal TiCN 13
    $80.36
  • A78268 ACT 1/2-20 0.3670 3-3/8 H5 3 Spiral Fluted Powdered Metal TiCN 1
    $60.20
  • A78281 ACT 1/2-13 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal ALTiN 22
    $80.36
  • A78282 ACT 1/2-20 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal ALTiN 11
    $65.34
  • A78295 ACT 1/2-13 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal STEAM-OXIDE 24
    $60.04
  • A78296 ACT 1/2-20 0.3670 3-3/8 H3 3 Spiral Fluted Powdered Metal STEAM-OXIDE 35
    $58.96
  • A55145 ACT 5/8-11 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal Uncoated 20
    $79.95
  • A55146 ACT 5/8-18 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal Uncoated 55
    $79.95
  • A78232 ACT 5/8-18 0.4800 3-13/16 H3 3 Spiral Fluted Powdered Metal Uncoated 20
    $80.36
  • A78242 ACT 5/8-18 0.4800 3-13/16 H3 3 Spiral Fluted Powdered Metal STEAM-OXIDE Available to Order*
    $83.20

* Lead times can vary from 1–10 business days. Call (908) 98-ATLAS or email sales@atlascuttingtools.com for details.

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