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The Busch® Twist Drills, Fig. 77, measuring 0.50 mm (0.0197"), are engineered for unmatched precision and durability, making them indispensable tools for professional jewelers, metalworkers, and artisans. Crafted from premium tungsten vanadium steel, these twist drills deliver exceptional strength and maintain a sharp, long-lasting cutting edge to ensure flawless, consistent performance.
Featuring precision-machined, uniformly spaced flutes, the twist drills provide smooth, accurate cutting with minimal material damage, enhancing your ability to create detailed and intricate work. The 3/32" shank and approximately 1.75" overall length ensure compatibility with most rotary tools, including flex shafts and Dremels, for versatile use in your workshop.
For optimal results and to prolong tool life, it is highly recommended to use a cutting lubricant such as Busch’s Lube-Stik. The drills are designed to operate efficiently within a speed range of 1,400 to 10,000 rpm — refer to ANSI speed guidelines for precise recommendations.
Proudly made in Germany, these twist drills embody meticulous craftsmanship and rigorous quality control, offering superior wear resistance and reliability. Whether for engraving, drilling, or delicate repairs, this pack of 6 twist drills provides professional-grade performance to elevate your jewelry-making and metalworking projects.
- Brand: Busch®
- Diameter: 0.50 mm (0.0197")
- Figure Number: 77
- Material: Tungsten Vanadium Steel
- Package Contents: 6 twist drills
- Shank Size: 3/32" diameter, approx. 1.75" length
- Shape: Twist Drill
- ISO Classification: #005
- Material Quality: High-grade steel for precision and durability
- Quantity: 6 drills per pack
- Country of Origin: Germany
- Applications: Ideal for drilling metals, gemstones, and other materials requiring precision and control.
About this Item:
Busch® twist drills are expertly crafted from premium tungsten vanadium steel, designed to provide smooth, consistent cuts and a flawless finish. Their precisely engineered flutes and sharp edges ensure accurate drilling, making them perfect for detailed jewelry work and other fine metal applications. These drills maintain excellent performance even at low speeds, reducing the risk of overheating or material damage.
How to Use:
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Attach the twist drill securely to your rotary tool, such as a flex shaft or Dremel.
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Apply gentle, consistent pressure while drilling.
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For best results and to extend tool life, use a lubricant such as Busch Lube-Stik.
Safety Information:
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Always wear protective eyewear while operating rotary tools.
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After use, clean drills with a soft cloth and mild soap to preserve sharpness and maintain tool quality.
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Features
Tungsten Vanadium Steel: Crafted from premium tungsten vanadium steel, providing exceptional strength, durability, and long-lasting sharpness for precise, consistent results.
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Uniform Precision Flutes: Engineered with precision-machined, uniformly spaced flutes to ensure smooth, accurate cutting with minimal vibration and material damage.
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Exact Size & Shape: 0.50 mm diameter, Fig. 77 twist drill designed specifically for fine, detailed drilling in jewelry and metalworking applications.
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Standard Shank: 3/32" shank diameter with an approximate length of 1.75" ensures compatibility with most rotary tools, including Dremels and flex shafts.
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Recommended Speed Range: Optimal performance within 1,400 to 10,000 rpm, allowing precise control for delicate work while maintaining tool longevity.
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Lubrication Recommended: Using lubricants like Busch Lube-Stik enhances cutting efficiency, reduces heat build-up, and prolongs tool life.
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Made in Germany: Manufactured with meticulous craftsmanship and quality control for superior wear resistance and reliable performance.
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Pack of 6: Includes six high-quality twist drills, providing excellent value and convenience for both professional jewelers and hobbyists alike.
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Versatile Application: Ideal for engraving, drilling, stone setting, and other intricate metalworking tasks requiring precision and finesse.
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