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6mm (1/4") Diamond Drill Bit "Needle D's 3.0"

The Calidad "Needle D's 3.0" Diamond Core Drill Bit revolutionizes high-speed hole-making with its unparalleled longevity and precision. Designed for seamless installations, these 6mm (1/4") bits are ideal for professionals requiring accurate, smaller holes in tough materials. The unique Vacuum Brazed Diamond Technology ensures efficiency and durability, making these bits a superior choice for detailed work in challenging installations.
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  • Description
  • Applications
  • Use-Cases
  • Tech Specs

6 mm Diamond Drill Bit for high-speed hole-making and a long lifespan. 

Unleash the power of our Diamond Hole Bits, meticulously engineered for rapid hole creation and extraordinary lifespan. These hexagonal bits, featuring a 1/4" shank, are constructed from sturdy, solid steel. They are the epitome of seamless hole-making prowess. Witness these bits' longevity, precision in cutting smaller holes, and absolute integrity.


The new standard for drill bits performance. 

Experience the Vacuum Brazed Diamond Technology in action: our bits are fortified with high-strength diamonds that make tile drilling a breeze. This technology shines particularly when drilling pristine holes through robust materials, such as porcelain floors, granite ceramics, glass mirrors, marble stone masonry, and bricks.

Great for various applications: from custom shower pans and shower bases to shower walls, towel bars, and toilet paper hangers.






Custom Shower Fittings: Ideal for drilling mounting holes for shower doors, fixtures, and accessories with precision.


Bathroom Accessories Installation: Perfect for securely installing towel bars, hooks, and toilet paper holders in bathrooms.


Decorative Work on Hard Surfaces: Suitable for creating precise holes in decorative pieces made of hard materials for mounting or hanging.


Glass and Mirror Drilling: Capable of drilling clean, chip-free holes in glass and mirrors for fixtures or artistic applications.

  • Size: 6mm (1/4") diameter with a 1/4" hexagonal shank

  • Material: Solid steel construction with Vacuum Brazed Diamond Coating

  • Technology: Vacuum Brazed Diamond for enhanced durability and cutting speed

  • Features:

    • Diamond Coating for faster drilling

    • Depth Mark for precise depth control

    • Start Tip Technology to reduce bit walking

    • Dry Drilling Design with internal wax lubricant, compatible with water cooling

  • Lifespan: Capable of drilling 35+ holes

  • Storage: Includes a portable plastic storage case for convenience and protection