Step Drill Bit - 6542 4-20mm (TiN Coating)

Step Drill Bit designed from premium M35 high‑speed steel with cobalt delivers outstanding durability and wear resistance. This multi‑step drill effortlessly cuts a range of diameters (4.0–20.0 mm, 20.0 mm) in one tool, saving you time and eliminating the need to change bits between holes. It is ideal for drilling metals, plastics and wood for cleaner, more precise holes.

A precision 135° split‑point and double spiral flutes deliver clean, burr‑free holes and rapid chip evacuation. The hex shank provides a secure grip in drill chucks, minimising slippage and allowing confident drilling on site or in the workshop.

Performance and Applications

Additionally, Suitable for electricians, machinists and DIY enthusiasts, this versatile tool eliminates the need to stock multiple bits. Its clearly marked steps make it easy to select the desired hole size, while the robust construction means it performs consistently across materials. Whether you’re enlarging holes, deburring edges or drilling clean round holes in sheet metal or plastics, this step bit gets the job done.

• Premium M35 cobalt high‑speed steel for long tool life
• Multi‑diameter (4.0–20.0 mm, 20.0 mm) bit eliminates frequent tool changes
• 135° split‑point and double spiral flutes for clean drilling
• Available with advanced TiAlN or nano coating for heat resistance
• Drills stainless steel, mild steel, aluminium, copper, plastic and wood