Discover the 13/64″ × 3‑5/8″ Cobalt High‑Speed Drill Bit, engineered from premium high‑speed steel enriched with 8% cobalt for superior durability. Its compact diameter and extended shank deliver precise control while the cobalt alloy resists the intense heat generated during deep metal drilling. The advanced geometry ensures smooth entry and reduces wobble, making it ideal for demanding applications.
Why it matters: This drill bit cuts through hardened alloys faster than standard HSS, lowering operator fatigue and extending tool life. The heat‑resistant composition maintains sharpness even at temperatures above 1000°F, guaranteeing consistent performance on tough substrates.
Key Features & Benefits:
- 8% Cobalt Alloy: Provides exceptional heat resistance and prolongs cutting efficiency in high‑temperature drilling.
- 135° Split‑Point Tip: Delivers rapid penetration and eliminates walking for accurate hole placement.
- Four Precision Cutting Edges: Maximizes material removal rate while preserving edge integrity.
- High‑Speed Steel Core: Offers a tough base that withstands the stresses of drilling hardened steel and titanium.
- Optimized for Hard Metals: Perfect for heat‑treated steel, stainless steel, chrome, manganese steel, titanium, and armor plate.
Upgrade your toolkit today: With this cobalt‑infused drill bit you gain reliable performance on the toughest materials, reduce tool changes, and finish jobs faster. Its robust design and heat‑defying properties make it a go‑to choice for professional mechanics, fabricators, and DIY enthusiasts tackling high‑stress drilling tasks.








