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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.
Related Glossary Terms
- alloy steels
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 metal’s mechanical and/or physical properties. Principal alloying elements are nickel, chromium, molybdenum and silicon. Some grades of alloy steels contain one or more of these elements: vanadium, boron, lead and copper.
- alloys
alloys
Substances having metallic properties and being composed of two or more chemical elements of which at least one is a metal.
- blind-hole
blind-hole
Hole or cavity cut in a solid shape that does not connect with other holes or exit through the workpiece.
- lapping compound( powder)
lapping compound( powder)
Light, abrasive material used for finishing a surface.
- powder metallurgy
powder metallurgy
Processes in which metallic particles are fused under various combinations of heat and pressure to create solid metals.
- tap
tap
Cylindrical tool that cuts internal threads and has flutes to remove chips and carry tapping fluid to the point of cut. Normally used on a drill press or tapping machine but also may be operated manually. See tapping.
- threading
threading
Process of both external (e.g., thread milling) and internal (e.g., tapping, thread milling) cutting, turning and rolling of threads into particular material. Standardized specifications are available to determine the desired results of the threading process. Numerous thread-series designations are written for specific applications. Threading often is performed on a lathe. Specifications such as thread height are critical in determining the strength of the threads. The material used is taken into consideration in determining the expected results of any particular application for that threaded piece. In external threading, a calculated depth is required as well as a particular angle to the cut. To perform internal threading, the exact diameter to bore the hole is critical before threading. The threads are distinguished from one another by the amount of tolerance and/or allowance that is specified. See turning.
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