AI5816 4-22mm Multi-Step Drill Bit with 10 Flutes, 58-62HRC, Nitrided Surface
This professional step drill bit features a 4-22mm diameter range with 10 precision flutes, made from 4241 steel with 58-62HRC hardness. The nitrided black surface enhances durability for drilling thin metals, plastic, and composite materials.
We also offer this product in 6542 steel with oil-treated surface.
Spesifikasies
Produkbeskrywing
Precision Multi-Step Design: Engineered with 10 graduated steps (4-22mm) and spiral flutes for clean hole enlargement in sheet metal and tubing. Each step has a 4.2mm cutting edge and 1mm chamfer for smooth transitions between diameters.
Industrial-Grade Material: Constructed from 4241 steel with nitriding surface treatment for wear resistance. The 58-62HRC hardness ensures extended lifespan in high-volume metalworking applications.
Optimized for Thin Materials: The 52mm cutting edge length and 75mm total length provide optimal control for electrical enclosures, HVAC ducts, and automotive panels. Minimizes burrs in materials up to 4mm thickness.
Heavy-Duty Compatibility: Includes a 50BV30 steel adapter (40mm) for secure chuck gripping. Ideal for CNC machines, drill presses, and handheld power drills in manufacturing and repair shops.
Efficient Chip Removal: The helical flute design prevents material buildup during continuous operation, maintaining precision in stainless steel, aluminum, and plastics.
