As the leading ship supplier in Comoros, Marine Tapping Bits, we specialize in delivering high-quality Marine Step Drill Bits with unmatched speed and reliability. Trusted by shipowners and masters worldwide, our team ensures your vessel gets everything it needs — on time, every time.
Marine Step Drill Bits are specialized tools designed for drilling precise, clean holes in metal and other materials, commonly used in marine applications. These bits feature multiple stepped diameters, allowing for hole enlargement without bit changes, enhancing efficiency. Mechanical Systems refer to the integrated components and mechanisms that ensure smooth operation and durability in demanding environments.
Size: 6 mm to 25 mm diameter
Grade: High-speed steel (HSS) or cobalt alloy
Viscosity: N/A (not applicable for drill bits)
Buoyancy: Negative (sinks in water due to metal density)
Material: High-speed steel (HSS), cobalt, or titanium-coated
Point Angle: 118° or 135°
Flute Type: Spiral or straight
Shank Type: Round or hex
Coating: Titanium nitride (TiN) or black oxide
Hardness: 62-65 HRC (Rockwell C scale)
Corrosion Resistance: Moderate to high (depends on coating)
Operating Speed: 500-3000 RPM (varies by size and material)
Application: Metal, wood, and plastic drilling in marine environments
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