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China Suppliers Vacuum Brazed Diamond Drill Bits 5mm-16mm Hole Saw for Granite, Marble, Ceramic Tile, and Glass Factory

Introducing our premium 5mm-16mm Hex Handle Vacuum Brazed Diamond Glass Dry Drill Bits, specially designed for cutting through granite, marble, ceramic tile, and glass with exceptional precision. As a leading supplier and factory based in China, we ensure that our drill bits are manufactured using high-quality materials and advanced technology, providing you with durability and efficiency for all your drilling needs. Whether you are a professional contractor or a DIY enthusiast, our diamond drill bits will deliver flawless results every time. Elevate your projects with tools you can trust from top China suppliers
  • drill type Center Drill Bit, Core Drill Bit
  • use Glass Drill Bit
  • finish Other
  • place of origin Zhejiang, China
  • warranty 3 years
  • customized support ODM, OBM, OEM
  • brand name HEYIDA
  • model number 5mm-16mm
  • Use Masonry Drilling
  • Type Core Drill Bit
  • Material Diamond
  • Certification ISO9001
  • unitSize 1.0X1.0X10.0
  • unitWeight 0.015

Core Features and Advantages

Crafted with high-grade diamond material and advanced Vacuum Brazed Diamond Technology, this drill bit delivers superior drilling efficiency, sharp cutting performance and ultra-long service life. Built-in cooling wax enables dry drilling without water supply, which greatly simplifies operation, reduces work mess and prevents overheating effectively. Optimized for high-speed operation, the recommended rotating speed is no less than 2000 rpm/min, and higher speed will bring better drilling effect, ensuring a swift, smooth and precise drilling experience with high working efficiency.

Universal Compatibility

Equipped with a 6.35mm standard hexagon shank, it perfectly fits most electric drill tools on the market for stable clamping and easy use. It is suitable for both professional construction workers and DIY enthusiasts.

Wide Application Range

This professional grade drill bit is designed for drilling on various hard materials including granite, marble, ceramic tile, glass, hard plastic, masonry and concrete. It is an ideal essential tool for tiling projects, countertop installation and various masonry drilling work, such as drilling holes in granite countertops or installing subway tiles.

Detailed Specifications

Material High-quality Diamond
Shank Type 6.35mm Hexagon Shank
Diamond Working Length 10mm
Available Sizes 6mm, 8mm, 10mm, 12mm
Key Feature Built-in cooling wax, support dry drilling

Important Usage Notes

  • 1 When using this brazed diamond drill bit, the rotating speed of your electric tool shall not be lower than 2000 rpm/min; higher speed brings better drilling effect.
  • 2 Avoid applying excessive downward pressure during operation, otherwise it will easily cause damage to the drill bit and affect its service life.

Package Included

📦 1 x Diamond Drill Bit

Product Listing Brief Description

Premium Diamond Dry Drill Bit Available in 6/8/10/12mm. Adopts Vacuum Brazed Diamond Technology for long lifespan and high drilling efficiency. Built-in cooling wax enables dry drilling without water, no work mess. 6.35mm hex shank fits most drills, recommended rotating speed no less than 2000 rpm/min. Suitable for drilling on granite, marble, tile, glass, plastic, masonry and concrete. Ideal for tiling and countertop drilling projects. Note: Do not apply heavy pressure during use. Package includes 1 drill bit.

Single and Set

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Frequently Asked Questions

Q What materials can this diamond drill bit be used on?
This drill bit is designed for use on a wide range of hard materials including granite, marble, ceramic tile, glass, hard plastic, masonry, and concrete. It is ideal for tiling projects, countertop installation, and general masonry drilling tasks.
Q Does this drill bit require water cooling during use?
No. Thanks to the built-in cooling wax, this drill bit supports completely dry drilling without any water supply. This makes the operation cleaner, simpler, and more convenient while effectively preventing overheating.
Q What is the recommended rotating speed for this drill bit?
The minimum recommended rotating speed is 2000 rpm/min. Higher speeds will produce better drilling results. Using a speed below this threshold may reduce drilling efficiency and shorten the lifespan of the drill bit.
Q What shank type does this drill bit use, and will it fit my drill?
This drill bit features a standard 6.35mm hexagon shank, which is compatible with the vast majority of electric drill tools available on the market. It offers stable clamping and easy installation for both professional users and DIY enthusiasts.
Q What sizes are available for this diamond drill bit?
This drill bit is available in four sizes: 6mm, 8mm, 10mm, and 12mm. You can choose the size that best suits your specific drilling project requirements, whether for small precision holes or larger openings.
Q How do I extend the service life of this drill bit?
To maximize the lifespan of the drill bit, avoid applying excessive downward pressure during operation. Let the drill bit and its speed do the work. Maintain a rotating speed of at least 2000 rpm/min and allow the built-in cooling wax to manage heat naturally. Forcing the bit with heavy pressure is the most common cause of premature wear or damage.