7/16 X 5-1/2 In. Cobalt High-speed Drill Bit

Discover the Cobalt HSS 7/16" x 5½" High‑Speed Drill Bit, engineered for rapid, precise drilling in the toughest alloys. Crafted from premium high‑speed steel infused with 8 % cobalt, this bit maintains sharpness even when temperatures soar above 1000 °F. Its sleek geometry and robust construction give you confidence on heat‑treated steel, stainless steel, chrome, manganese, titanium and armor‑grade materials.

Why it matters: The enhanced heat resistance reduces tool wear, delivering consistent cut quality and extending bit life. Faster hole entry minimizes motor strain, while the split‑point tip eliminates walking for accurate starts every time.

• 8 % cobalt alloy: Provides superior thermal stability for drilling in high‑heat environments.
• 135° split‑point tip: Guarantees immediate bite and prevents bit wander on smooth surfaces.
• Four precision cutting edges: Boosts material removal rate and ensures clean, round holes.
• High‑speed steel core: Offers exceptional toughness and wear resistance for long‑lasting performance.
• Versatile size 7/16" × 5½": Ideal for medium‑diameter holes in a wide range of hard metals and specialty alloys.

Engineered for professionals: Whether you’re a machinist, automotive technician, or DIY enthusiast, this cobalt drill bit delivers the speed and durability you demand. Trust its heat‑defying composition to cut through hardened steel and exotic alloys without sacrificing accuracy. Upgrade your drill set today and experience unmatched efficiency on every tough job.