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The Busch® Burs - Twist Drills, Fig. 77 - 1.80mm (ISO #018) offer unmatched precision and durability, making them an essential tool for professional jewelers and artisans. Our Busch® Fig. 77 Twist Drills measure 1.80mm (0.0709”) and are made of tungsten vanadium steel for exceptional strength and a long-lasting edge. The precision-machined, uniformly spaced flutes ensure accurate and smooth cutting, while the 3/32" shanks, measuring approximately 1.75" long, are compatible with most rotary tools like flex shafts and Dremels. For optimal performance, use a cutting lubricant, such as Lube-Stik, to facilitate smooth drilling and extend tool life. The recommended speed range is 1,400 - 10,000 rpm; consult ANSI guidelines for precise speed recommendations. These burs, made in Germany, are crafted to deliver flawless finishes, whether used for detailed jewelry work or repairs. Designed for accuracy and efficiency, Busch® Twist Drills Fig. 77 elevate your craftsmanship by reducing material damage and ensuring consistent results. Add this Pkg. of 6 twist drills to your toolkit and experience professional-grade performance.
- Brand: Busch®
- Diameter: 1.80mm (0.0709”)
- Figure Number: 77
- Material: Tungsten Vanadium Steel
- Package Contents: 6 twist drills
- Shank Size: 3/32” diameter, 1.75” length
- Shape: Twist Drill
- ISO Classification: #018
- Material Quality: High-grade tungsten vanadium steel for exceptional precision, strength, and durability
- Quantity: 6 drills per pack
- Country of Origin: Germany
- Applications: Ideal for use on metals, gemstones, wood, plastics, and other materials requiring detailed precision drilling
About this Item:
Busch® burs are expertly crafted from premium tungsten vanadium steel, engineered to deliver smooth, consistent, and precise cuts. The finely honed cutting edges and precision-machined flutes ensure minimal vibration and clean, burr-free holes, making these drills perfect for intricate jewelry work, fine metalworking, and delicate repair tasks. Their durability allows for reliable performance even under extended use and at lower speeds.
How to Use:
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Securely attach the bur to compatible rotary tools such as flex shafts or Dremels.
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Apply gentle, consistent pressure during drilling to avoid damaging the material or the tool.
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Use a cutting lubricant like Busch Lube-Stik to reduce friction, improve cutting efficiency, and extend the lifespan of the burs.
Safety Information:
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Always wear appropriate protective eyewear and gloves when operating rotary tools.
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Maintain a clean work area and use adequate ventilation if working with fine dust or particles.
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After use, clean burs gently with a soft cloth and mild soap, then dry thoroughly to prevent corrosion and maintain sharpness.
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Features
Tungsten Vanadium Steel: Exceptional strength and long-lasting sharpness for consistent precision.
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Uniform Flutes: Precision-machined, uniformly spaced flutes for smooth, accurate cutting with minimal vibration.
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Size & Shape: 1.80mm diameter, Fig. 77 twist drill designed for detailed and fine drilling applications.
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Shank Size: Standard 3/32” diameter, approximately 1.75” long, compatible with most rotary tools such as flex shafts and Dremels.
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Speed Range: Recommended operational speeds between 1,400 - 10,000 rpm for optimal performance and tool longevity.
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Made in Germany: Manufactured with premium-quality craftsmanship ensuring durability and reliability.
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Pack of 6: Convenient multi-pack designed for both professional jewelers and hobbyists, ensuring you always have replacements on hand.
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Versatile Applications: Ideal for precision drilling in metals, gemstones, plastics, wood, and other materials used in jewelry making and fine metalworking.
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Reduced Material Damage: Engineered to minimize chipping, cracking, or damage to delicate materials, preserving the integrity of your workpiece.
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Long Tool Life: High-quality steel and optimized flute design help maintain cutting efficiency and sharpness over extended use.
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Easy Maintenance: Designed for simple cleaning and upkeep to maintain peak performance.
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