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Drilax

2.5mm Diamond Drill Bit Set 20-Pcs for Jewelry, Glass, Shells & Gemstones

2.5mm Diamond Drill Bit Set 20-Pcs for Jewelry, Glass, Shells & Gemstones

Master delicate jewelry and craft projects with this 20-piece precision diamond drill bit set, designed for chip-free holes in sea glass and gemstones. These industrial-grade 2.5mm bits provide the control needed for professional-level lapidary work and intricate DIY designs.

Regular price $21.94 USD
Regular price $22.94 USD Sale price $21.94 USD
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Quantity

20-Piece Bulk Value Pack: Never worry about a dull bit mid-project; this set ensures you have the replacements needed for high-volume jewelry and craft production.

Precision 2.5mm Tips: Specifically engineered for fine detail work, providing the perfect diameter for pendants, jewelry findings, and decorative beads.

Universal Tool Compatibility: Includes a dedicated collet to ensure a perfect fit with Dremel-style rotary tools, flex shafts, and standard cordless drills.

Industrial Diamond Coating: High-quality diamond abrasive delivers smooth grinding action, preventing cracks in brittle sea shells, glass, and stones.

Compatible Materials

Materials:

  • Sea Glass and Decorative Glass
  • Sea Shells and Gemstones
  • Small Ceramic and Porcelain Tiles
  • Hard Stones and Marble

Tool Compatibility:

  • Brands: Dremel, Wen, Milwaukee, Ryobi, Makita, and Bosch.
  • Tool Types: Rotary Tools, Flex Shafts, Drill Presses, and Handheld Cordless/Corded Drills.

How To Use

  1. Submerge or Spray: Always use water as a coolant. Submerge the material in a shallow tray of water or use a steady drip.
  2. The Angle Start: Start the drill at a 45-degree angle to create a small "notch" so the bit doesn't "walk" across the surface.
  3. Level Up: Slowly bring the drill to a 90-degree vertical position once the hole is started.
  4. Light Touch: Use very light pressure and low RPM. Let the diamonds grind the hole; do not force the bit.

Expert Tip: Frequent "pulsing" (lifting the bit up and down slightly) allows fresh water to enter the hole and flush out debris, extending the life of the bit.

Use Cases

Jewelry Making: Creating precision holes for custom pendants, earrings, and necklaces using sea glass or gemstones.

Beach Finds: Transforming shells and beach stones into decorative keepsakes or wind chimes.

Lapidary Hobbyists: Fine-detail stone drilling and bead creation for professional or hobbyist rock hounds.

Technical Specifications

Bit Diameter: 2.5mm

Quantity: 20 Pieces

Shank: Round Shank (includes Dremel-compatible collet)

Coating: Premium Diamond Abrasive

UPC: 850004328613

EAN: 0850004328613

Condition: Brand New

F.A.Q.

Q: Will these fit my Dremel tool?
A: Yes! These bits are fully compatible with Dremel-style rotary tools and flex shafts. We have included a specialized collet to ensure a secure, slip-free fit.

Q: What materials can I drill with these?A: They are perfect for sea glass, beach stones, sea shells, gemstones, ceramic, porcelain, and small glass bottles.

Q: Do I really need to use water?
A: Yes. Without water, the diamond coating will overheat and burn off almost instantly. Water keeps the bit cool and ensures a clean, professional finish.

Shipping & Returns

All DRILAX orders are fulfilled directly from our New Jersey headquarters or a regional warehouse strategically located near you. We offer Free Shipping on all orders with no minimum purchase required. Most customers receive their precision tools within 2-3 business days, ensuring your project stays on schedule.

We have a 30-day return policy.

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