Material: These tools are primarily made from tungsten carbide steel, known for its high hardness and wear resistance.
Coating: The distinctive blue finish is typically a "nano blue coating", which is a type of Physical Vapor Deposition (PVD) coating such as Titanium Carbo Nitride (TiCN). This coating enhances durability, reduces friction and heat during use, and extends the lifespan of the tool.
Types: The set includes various styles for different applications, such as:
Flat nose end mills (for straight cuts and general-purpose milling).
Ball nose end mills (for curved surfaces and 3D contouring).
Spiral drill bits (for drilling holes and chip removal).
Application: These bits are widely used for machining a variety of materials, including wood, plastic, PCB (printed circuit boards), copper, stainless steel, and other metals.