Cobalt M42 Drill Bit With Three Flat Shank Half Inch By Six Inch Pro Grade Heavy Duty Bit For Stainless Steel Cast Iron Titanium Aluminum And Light Gauge Metals

M42 Cobalt Drill Bit 1/2 in x 6 in (Single Bit) for metal
✔️ 1/2 in diameter, 6 in length, cobalt M42 alloy, three-flat shank

These cobalt M42 drill bits are designed for tough metalworking tasks, offering long life and high heat resistance when drilling stainless steel, cast iron, titanium, aluminum and other hard or abrasive metals. Ideal for fabrication, maintenance shops, and industrial use.

✅ 8% cobalt alloy for longer life
✅ 10x life vs standard bits
✅ high-heat resistance for prolonged use
✅ surface-hardened tip for tough materials
✅ split point on 1/8 in and larger for easy starts
✅ three-flat shank on 3/16 in and larger for better grip
✅ thick web-helix design for fast material removal and stability

💡 What is a cobalt drill bit used for in metalworking?

These bits are built to drill hard metals with long edge life and high heat resistance.

• cobalt M42 drill bit for stainless steel and other hard alloys
• high heat tolerance reduces wear during extended drilling
• split point on 1/8 in and larger helps start without a center punch
• three-flat shank on 3/16 in and larger provides a secure grip