Introducing the Master Mechanic Cobalt HSS Drill Bit, a 7/32‑inch by 3‑¾‑inch precision tool engineered for demanding metalworking tasks. Constructed from high‑speed steel blended with 8% cobalt, it endures temperatures above 1000°F while staying razor‑sharp. The 135° split‑point geometry combined with four cutting lips ensures swift entry and eliminates wandering, delivering accurate holes even in the toughest substrates. Ideal for heat‑treated steel, stainless steel, chrome‑manganese alloys, titanium and armor‑grade plates.
Why it matters: This bit’s cobalt‑rich composition provides exceptional heat resistance, reducing tool wear and extending service life. Rapid penetration saves time on high‑volume projects, while the split‑point design minimizes the need for pilot holes.
Key Features & Benefits:
- Cobalt‑enhanced HSS: Superior thermal stability allows drilling at high speeds without loss of edge integrity.
- 135° split‑point tip: Guarantees immediate bite and prevents walking on hard surfaces.
- Four precision‑ground cutting edges: Produce clean, round holes with lower torque and reduced chip buildup.
- Optimized for hard alloys: Perfect for stainless steel, chrome‑manganese, titanium, armor plate and other high‑strength metals.
- Extended service life: The cobalt alloy reduces wear, delivering more holes per bit and lower replacement costs.
Final Thought: Choose this cobalt‑infused drill bit when you need reliable performance in the most challenging metal‑drilling applications. Its heat‑resistant formula, aggressive geometry and durable construction set it apart from standard HSS bits, giving you confidence to tackle any hard‑metal job with precision and efficiency.
