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
    A55183 ACT 5/8-11 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 19
    $114.70
  • A55184 ACT 5/8-18 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE Available to Order*
    $86.01
  • A78231 ACT 5/8-11 0.4800 3-13/16 H3 3 Spiral Fluted Powdered Metal Uncoated 42
    $107.20
  • A78241 ACT 5/8-11 0.4800 3-13/16 H3 3 Spiral Fluted Powdered Metal STEAM-OXIDE 22
    $110.99
  • A78270 ACT 5/8-18 0.4800 3-13/16 H3 3 Spiral Fluted Powdered Metal TiCN 18
    $117.35
  • A55148 ACT 3/4-16 0.59 4-1/4 H3 4 Spiral Fluted Powdered Metal Uncoated 29
    $93.39
  • A78233 ACT 3/4-10 0.5900 4-1/4 H3 4 Spiral Fluted Powdered Metal Uncoated 58
    $93.39
  • A78234 ACT 3/4-16 0.5900 4-1/4 H3 4 Spiral Fluted Powdered Metal Uncoated 23
    $93.39
  • A78244 ACT 3/4-16 0.5900 4-1/4 H3 4 Spiral Fluted Powdered Metal STEAM-OXIDE 13
    $97.46
  • A78424 ACT 3/4-16 0.5900 4-1/4 H3 4 Spiral Fluted Powdered Metal TiCN 1
    $103.00

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

  • Total: items /

Adding your products to cart

View Cart Continue Shopping