Bosch Cobalt Metal Drill Bit 4mm per piece

Product

High-performance Bosch cobalt drill bit with a 4mm diameter, designed for demanding drilling tasks in tough and hard metals, including stainless steel, refractory, and acid-resistant steels. Suitable for professional or industrial environments requiring reliability in metalworking.

Specifications

• Constructed from durable cobalt alloy, ensuring enhanced heat resistance and wear protection.
• Fully ground HSS (high-speed steel) body with 5% cobalt content for increased lifespan and performance.
• Optimized two-cutter, two-flute geometry for efficient chip removal.
• Precision-engineered split-point tip for clean, accurate drilling with reduced wandering.
• Suitable for rotary drills/drivers with cylindrical or three-jaw chucks.

Usage

Ideal for penetrating highly resistant materials and hard steels. To maximize tool longevity and cutting efficiency, always use a cooling fluid while drilling. The bit delivers extended service life, especially in repeated professional use with stainless or hard metals.

FAQ

1. Can this drill bit be used with stainless steel?
   Yes, it is specifically engineered for stainless steel and other hard or heat-resistant metals.

2. Is coolant necessary during drilling?
   Yes, using a cooling fluid is recommended to maintain performance and prevent overheating.

3. What type of drill is compatible with this bit?
   It fits most rotary drills/drivers with cylindrical or three-jaw chucks.

4. How does the split-point tip help?
   The split-point tip ensures accurate positioning and minimizes drill bit wandering at the start of drilling.

5. Is this bit suitable for cast iron or alloy steels?
   Yes, it is designed for use with a variety of tough materials, including cast iron and alloyed steels.

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