Product: Step drill bit setMaterial: The bits are typically made of high-speed steel (HSS) with a titanium coating for durability.
Design: These bits feature a conical, stepped shape with multiple cutting diameters on a single bit, which allows for drilling holes of various sizes without needing to change bits.
Features: They often have laser-engraved markings for size identification, a split-point tip for easy starting without pre-punching, and a spiral flute design for efficient chip removal and less vibration.
Use: They are used for drilling holes in various materials such as sheet metal, wood, and plastic.