
Premium 4mm cobalt drill bit set (10pc) for iron, steel, stainless & wood. DIN 338 standard with storage tube.
The Blue Spot Tools 10-Piece Cobalt Drill Bit Set (4mm) is engineered for professional-grade performance in demanding drilling applications. Manufactured from high-speed steel with 5% cobalt content, these drill bits deliver exceptional durability and heat resistance, making them ideal for continuous heavy-duty use.
The precision-ground flute design enhances drilling accuracy while reducing material fatigue. These versatile bits are suitable for drilling through various materials including iron, non-ferrous metals, plastic, steel, stainless steel and wood - providing reliable performance across multiple applications.
Key Features:
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