10-Pack Glass & Jade Drill Bits 0.8–2.5mm | 2.35mm Shank
10-Pack Glass & Jade Drill Bits 0.8–2.5mm | 2.35mm Shank
10-Pack Glass & Jade Coated Drill Bits — 7 Sizes for Precise Jewelry Making
Create flawless holes in glass, jade, amber, agate, and other gemstones with this versatile 10-piece drill bit set. Engineered with a hardened steel and iron construction and a amber-coated tip, these center drill bits deliver clean, controlled drilling through hard stones and glass without chipping or cracking your precious materials. The compact 2.35mm shank fits standard rotary tools and pin vises, making them ideal for bead crafting, pendant drilling, and intricate jewelry work.
Made in Mainland China.
Key Features
- 10-Piece Set: Includes multiple bits across 7 head diameters — 0.8 / 1.0 / 1.2 / 1.5 / 1.8 / 2.0 / 2.5mm — covering nearly every jewelry drilling need
- Amber Coated Tips: Specialized coating reduces friction and extends bit life when drilling glass, jade, agate, and similar hard materials
- 2.35mm Shank: Universal shank size compatible with most rotary tools, Dremel-style handpieces, and pin vise drills
- Center Drill Design: Self-centering tip prevents wandering for accurate, clean hole placement on beads, cabochons, and flat stone slabs
- Compact Total Length: 41–42mm overall length for precise, controlled handling during fine detail work
- Material: Durable steel and iron construction for lasting performance across repeated uses
Specifications
| Shank Diameter | 2.35mm |
| Head Diameters | 0.8 / 1.0 / 1.2 / 1.5 / 1.8 / 2.0 / 2.5mm |
| Total Length | 41–42mm |
| Material | Steel and Iron with Amber Coating |
| Quantity | 10 Drill Bits |
| Ideal For | Glass, Jade, Agate, Amber, Gemstone Beads |
What's in the Box?
- 10 × Amber Coated Glass & Jade Drill Bits (assorted sizes)
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Frequently Asked Questions
Q: What materials can these glass and jade drill bits be used on?
A: These amber-coated drill bits are designed for hard, brittle materials including glass, jade, agate, amber, gemstone beads, and similar semi-precious stones. They are not intended for use on wood, metal, or masonry materials. For best results when drilling glass or stone, use slow rotary speeds and apply a small amount of water as a coolant to keep the bit and workpiece from overheating.
Q: What rotary tools are compatible with the 2.35mm shank?
A: The 2.35mm shank is a standard size that fits most hobby rotary tools including Dremel-style handpieces, flexible shaft machines, and pin vise drills. If your rotary tool uses a different collet size, a 2.35mm collet adapter may be required. Always verify your tool's collet compatibility before use.
Q: How many sizes are included in the 10-piece set?
A: The set includes bits across 7 different head diameters: 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm, and 2.5mm. The 10-piece pack means some sizes may be duplicated, giving you backup bits for the most commonly used diameters in jewelry making and bead drilling.