Halls MC 1M High-Speed Steel Step Drill 4-12mm | MC1M

Halls MC1M high-speed steel step drill bit, 4–12mm range

Halls MC1M step drill bit is designed for fast, controlled hole enlargement in sheet metal, letting you work through multiple diameters with a single high-speed steel cutter. It’s a practical choice for trades and maintenance work where clean, repeatable sizes matter.

With a 4–12mm stepped range and a shank sized to suit a 6.5mm drill chuck, the MC1M is ideal for progressive drilling where you want to reach the required diameter without swapping between multiple twist drills.

Key Features

• Stepped diameter range: Cuts multiple hole sizes from 4mm to 12mm using one drill bit for quicker workflow.
• Parallel hole sizes: Designed to produce consistent diameters at each step for predictable fitting work.
• High-speed steel construction: Suitable for drilling in metal applications where durability and edge retention are important.
• Sheet-metal focused performance: Intended for use on sheet metal up to the stated maximum thickness.
• Chuck-friendly shank: Shank sized to fit a 6.5mm drill chuck for broad drill compatibility.
• Coolant recommended: Use coolant when drilling metals to support smoother cutting and bit life.

Specifications at a glance

Suitable applications

• Progressive drilling and hole enlargement in sheet metal (up to 5mm thickness)
• Electrical, HVAC and general fabrication tasks where multiple hole sizes are required
• Maintenance and installation work where quick size changes help improve productivity