🧰 HSS Cobalt Drill Bits – Professional Metal Drill Bits for Stainless Steel, Alloy & Hard Metals (1mm–14mm, Multi-Pack Options)

Drill smarter, not harder. These HSS Cobalt Drill Bits are engineered to slice through stainless steel, hardened alloys, and cast iron with precision and speed.
Manufactured from industrial-grade M35 high-speed steel, each bit contains 5% cobalt, delivering unmatched hardness, heat resistance, and cutting efficiency.

Perfect for engineers, fabricators, and serious DIYers, these bits maintain their edge even under extreme drilling conditions — giving you faster cuts, cleaner holes, and longer tool life.

Whether you’re working on site, in the workshop, or on home projects, this is your go-to drill bit range for reliable, professional-grade metal drilling.

💪 Key Benefits

• Cuts Tough Metals with Ease: Ideal for stainless steel, cast iron, and high-tensile alloys.
• 5% Cobalt Alloy (M35): Maintains sharpness and hardness at high temperatures.
• 135° Split Point Tip: Self-centering design prevents bit wander and improves accuracy.
• Long Tool Life: Outperforms standard HSS bits — fewer replacements, lower cost per hole.
• Precision Ground Finish: Ensures faster penetration and reduced friction.
• Universal Compatibility: Works with cordless and corded drills, drill presses, and bench tools.
• Multipack Options: Choose 2-Pack or bulk Storage Tube (5-Pack or 10-Pack) for workshop use.

🧾 Size & Pack Options

2-PACK Sizes

1mm | 1.5mm | 2.0mm | 2.5mm | 3.0mm | 3.2mm | 3.5mm | 4.0mm | 4.5mm | 5.0mm | 5.5mm | 6.0mm | 6.5mm | 7.0mm | 7.5mm | 8.0mm | 8.5mm | 9.0mm | 9.5mm | 10.0mm | 10.5mm | 11.0mm | 11.5mm | 12.0mm | 12.5mm | 13.0mm

Storage Tube Multipacks

10-PACKS → 1mm – 7.5mm
5-PACKS → 8.0mm – 14.0mm

(Select your preferred size and pack in the dropdown above.)

⚙️ Technical Specifications

🔧 Ideal For

• Metal fabrication & engineering
• Construction & site work
• Electrical and plumbing installations
• Automotive & maintenance applications
• Precision workshop drilling

💬 Frequently Asked Questions

Q: Will these bits drill stainless steel?
Yes — the 5% cobalt alloy and split-point tip are specifically designed for stainless and other hard metals.

Q: How do I prevent overheating?
Use a steady, low speed and apply cutting fluid or oil to keep the bit cool.

Q: Are they suitable for aluminium or softer metals?
Absolutely. These bits deliver clean cuts on all non-ferrous metals too.