25pc HSS-E 5% Cobalt Drill Bit Set (1-13mm) – Industrial-Grade Metal Drilling Solution
Engineered for Extreme Conditions
Our premium 25-piece HSS-E cobalt drill bit set delivers unmatched performance in hardened metals. With 5% cobalt alloy and 65 HRC hardness, these bits withstand temperatures up to 650°C – perfect for stainless steel, titanium, and cast iron.
Technical Superiority:
✔ HSS-E Cobalt 5% Core – 5x longer lifespan vs standard HSS
✔ 135° Split Point – Eliminates "walking" for precise starts
✔ Spiral Flute Design – Efficient chip evacuation
✔ 0.5mm Increments – Full coverage (1.0-13.0mm)
Set Includes:
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25 cobalt drill bits (1-13mm)
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Durable plastic organizer case
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Laser-etched size markings
Industrial Applications:
- Aerospace component manufacturing
- Automotive repair (exhaust systems, engine blocks)
- Metal fabrication shops
- CNC machining centers
