Black Shark Tap

Black Shark Tap

The Dormer Shark line grows with the addition of the Black ring tap for high-strength steels and titanium alloys.

November 6, 2019

The Dormer Shark line grows with the addition of the Black ring tap for high-strength steels and titanium alloys.

Available in spiral point (E816, E817, E916, E917) and spiral-flute (E805, E806, E905, E906) geometries for through- and blind-hole threading, the new taps provide high performance and process security in hardened and tempered materials below 45 HRC.

Immediately identifiable by their black ring, the new taps incorporate a robust geometry to increase cutting edge strength and support problem-free, high quality thread production.

Like the rest of the Dormer Shark line of DIN ANSI taps, the Black Shark features a TIAlN-Top coating and is manufactured from a unique powder metallurgy tool steel for toughness, longer tool life and increased performance at higher operating temperatures.

Each tap within the Shark Line assortment features a color ring denoting material suitability, promoting quick and easy tool selection. Other material types covered in the range include red ring for alloy steels, yellow for structural, carbon and low alloy steels, blue for stainless steel and white for cast iron.

Glossary terms in this article

  • powder metallurgy
    Processes in which metallic particles are fused under various combinations of heat and pressure to create solid metals.
  • alloy steels
    Steel containing specified quantities of alloying elements (other than carbon and the commonly accepted amounts of manganese, sulfur and phosphorus) added to cause changes in the m…
  • blind-hole
    Hole or cavity cut in a solid shape that does not connect with other holes or exit through the workpiece.