1.25mm 10pcs Diamond Wire Hollow Drill Bits

Diamond Wire Hollow Core Drill Bit: Precision Drilling for Delicate Hard Materials

Diamond Wire Hollow Core Drill Bits are crafted by coating one end of a metal base with diamond particles, making them ideal for creating precise holes in a variety of hard-to-cut materials. Unlike conventional twist drills, which cut by shearing material, diamond  drills work by gently grinding or sanding the material, resulting in cleaner, chip-free holes. This grinding process requires patience, as it takes more time than traditional grinding methods.

How They Work:

• Grinding Action: The diamond -coated tip abrasively wears away the material, making it perfect for brittle or fragile surfaces like glass, stone, and porcelain.

• Core Removal: A core drill cuts more quickly than a solid drill because it only removes a small circle of material. Larger core drill Bits can preserve a usable core, which is great for sampling or other applications, while smaller Bits typically destroy the core during the cutting process.

Materials They Work On:

These versatile tools can drill through a wide range of materials, including:

• Stone

• Glass

• Tile

• Composites

• Plastics

• Resins

• Porcelain

• Even delicate materials like eggs!

Tool Compatibility:

• Small Sizes (1mm–6mm): These can be used with handheld drills or rotary tools like a Dremel or Foredom.

• Larger Sizes (6mm+): For stability and safety, larger diamond core drill Bits should be used in a drill press.

Why Choose Diamond Hollow Core Drills?

• Clean, Chip-Free Holes: Ideal for materials like glass and porcelain where clean edges are critical.

• Versatility: From granite countertops to delicate eggshells, these drills handle a wide range of materials.

• No Secondary Finishing: The holes created are smooth and ready for use, eliminating the need for additional sanding  or polishing.

• Durability: The diamond coating ensures a longer lifespan compared to traditional carbide drills, especially when working with hard materials.

Applications:

• Home & Tile Work: Perfect for installing faucets in porcelain sinks or grinding holes in shower tiles.

• Lapidary & Jewelry: Great for coring gemstones or creating holes in glass beads for jewelry.

• Art & Craft: Drill delicate materials like resin, eggshells, or seashells without shattering.

• Industrial Use: Precision grinding in composites, fiberglass, or carbon fiber panels.

Pro Tips for Success:

• Low Speed, Light Pressure: Use a drill at 300–1,000 RPM to avoid overheating.

• Keep It Cool: Lubricate with water (for stone/glass) or cutting oil (for metals/plastics) to extend the life of the bit and prevent material damage.

• Start at an Angle: Begin grinding at a 45° angle to create a groove, then straighten the bit for a clean hole.

• Patience is Key: Let the diamond do the work—forcing the drill can risk breaking the bit or the material.

Limitations:

• Time-Consuming: The grinding process is slower than conventional grinding .

• Core Fragility: Smaller bits (under 6mm) destroy the core, while larger Bits can preserve it.

• Tool Requirements: Larger diameters require a drill press for stability and safety.

Ideal For:

DIYers, tile installers, glass artists, lapidary enthusiasts, jewelers, and anyone working with brittle or hard materials where precision and clean edges are critical.

Upgrade Your Toolkit: Whether you're working on a glass art project, installing a tile backsplash, or creating jewelry from gemstones, these diamond core drill Bits offer unmatched precision and reliability. Pair them with the right tools and techniques, and you’ll achieve professional results every time.

Drill Smarter. Grind Gentler. Create Cleaner.