AWTOOLS AW STEP TWIST DRILL BIT M2-TiAlN / 4-39mm /BL

The AWTOOLS AW STEP TWIST DRILL BIT M2-TiAlN / 4-39mm /BL stands apart from conventional step drills through its combination of a spiral flute design and a premium TiAlN coating. While most step drills rely on straight flutes, this twist geometry actively pulls chips upward, reducing clogging and heat build-up during repeated hole enlargements. The result is a tool that stays sharper longer and delivers cleaner edges in demanding materials like stainless steel.

Highlights

• TiAlN coating for high heat resistance and excellent wear protection
• Spiral (twist) flute design for efficient chip evacuation
• Self-starting tip eliminates the need for a pilot hole
• Tri-flat shank prevents slipping in the drill chuck
• Covers a wide diameter range from 4 mm to 39 mm

In daily use

This step drill bit is a versatile companion for electricians, plumbers, and metal fabricators. It drills, deburrs, and enlarges holes in one operation, saving time when working on sheet metal, plastic enclosures, or thin-walled pipes. The single cutting edge per step produces smooth, round holes without chatter, while the TiAlN surface reduces friction and allows higher cutting speeds. Suitable for corded and cordless drills, it handles steel, stainless steel, non-ferrous metals, plastics, and even wood.

Full specifications

• Product type: Step drill bit
• Material: High-speed steel (HSS) M2
• Coating: Titanium Aluminum Nitride (TiAlN)
• Drilling diameter range: 4 mm – 39 mm
• Shank type: Tri-flat
• Shank diameter: 10 mm
• Flute design: Spiral (twist)
• Self-starting tip: Yes
• Number of steps: Multiple
• Cutting edge: Single cutting edge per step
• Tool compatibility: Corded and cordless drills
• Recommended materials: Steel, stainless steel, non-ferrous metals, plastics, wood
• Heat resistance: High
• Wear resistance: Excellent
• Colour: Dark grey / purple-grey (TiAlN characteristic)

Final note

For professionals who demand precision and durability in step drilling, the AWTOOLS AW STEP TWIST DRILL BIT M2-TiAlN / 4-39mm /BL delivers a reliable performance across a broad range of hole sizes. Its robust construction and advanced coating make it a worthwhile addition to any tool kit.