An HSS Cobalt Taper Shank Drill Bit is a heavy-duty cutting tool made from high-speed steel and cobalt for superior hardness and heat resistance, designed for drilling tough materials like stainless steel and hardened alloys. Its tapered shank fits directly into morse taper sockets in a machine’s spindle, enabling high-torque applications like large hole enlargement. These bits are built for demanding industrial use and are more effective than standard HSS bits on materials with high tensile strength.
Key features
- Material: High-Speed Steel (HSS) with a cobalt alloy (often 5% or 8%), which provides extreme hardness and heat resistance.
- Shank: Morse taper shank allows it to be inserted directly into a machine’s spindle for high-torque drilling applications.
- Application: Ideal for drilling through tough materials like stainless steel, titanium, and other hard metals where high heat is generated. It is also suitable for general-purpose drilling in steel and cast iron.
- Performance: The cobalt content allows for higher drilling speeds and greater durability, especially on high-tensile strength materials.
- Point: Often features a split to self-centering point to prevent “walking” and ensure more accurate hole placement without the need for a pilot hole.
- Flutes: Spiral flutes with a high angle help to evacuate chips efficiently and prevent clogging.
