65mm Length 20pcs 1.0mm Wire Hollow Diamond Drill Bits
$25.00
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DetailsDiamond Wire Hollow Core Drill Bit,These drill bits are crafted by diamond-coating one end of a durable metal base, making them ideal for creating holes in hard-to-cut materials with precision and efficiency.
Unlike traditional twist drills, diamond core bits cut by grinding rather than drilling, allowing for clean, controlled material removal. This process requires patience, but results in precise, high-quality holes—especially in brittle or delicate materials.
Core drills are more efficient than solid drill bits because they remove only a small ring of material rather than the entire area. Larger core bits often produce a usable core sample, while smaller bits typically destroy the core during cutting.
Suitable for use on:
Stone (natural and synthetic)
Glass
Ceramic and porcelain tile
Composites and resins
Plastics
Eggshells and other fragile materials
Tool Compatibility:
Small sizes: Hand drills, rotary tools (e.g., Dremel, Foredom)
Larger sizes: Drill press recommended for stability and accuracy
Whether you’re a lapidary artist, jeweler, or craftsman, these diamond wire core bits offer a reliable solution for drilling through some of the toughest materials. -
Shipping & Policies
Shipping from China
Processing time
1-7 business days
Customs and import taxes
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.
Payment Options
Returns & Exchanges
I gladly accept returns and exchanges
Just contact me within: 14 days of delivery
Ship items back to me within: 30 days of delivery
I don't accept cancellations
But please contact me if you have any problems with your order.
The following items can't be returned or exchanged
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
- Custom or personalized orders
- Perishable products (like food or flowers)
- Digital downloads
- Intimate items (for health/hygiene reasons)
- Items on sale
Conditions of return
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.
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