What’s the Best Drill Bit for Glass Without Cracking It?
time:2025-07-31 10:09:44

Why Drilling Glass Is Tricky?

Drilling into glass is no easy job. If you’ve ever tried it, you know how easy it is to crack, chip, or completely shatter the material. That’s where choosing the right glass drill bit comes in.

But with so many options—diamond drill bits, countersink bits, CNC glass drill bits—how do you know which one is right for your job?


Understanding Glass Drill Bit Types

Let’s break it down. There are a few major types of drill bits for glass:

  • Diamond-tipped drill bits for hard glass and long tool life

  • CNC drill bits designed for automatic, high-speed production

  • Countersink drill bits for chamfering and edge-smoothing

  • Core drill bits for large holes or sink cutouts

Each type has a different use-case. For example, CNC glass drill bits are perfect for automated processing lines in furniture and architectural glass factories.


Why Diamond Is the King of Glass Drilling?

The truth is, glass is super sensitive to heat and vibration. That’s why diamond drill bits—with their high hardness and thermal conductivity—are the go-to choice for clean, chip-free holes.

If you run a CNC drilling machine or even a manual workstation, Jiangxi Jinlong’s diamond drill bits are your best bet for:

  • ✅ Long-lasting performance

  • ✅ Clean, smooth edges

  • ✅ High-speed drilling with water cooling

  • ✅ Custom hole sizes and depths

Trust me, these aren’t your average store-bought bits.


What Makes Jinlong Drill Bits Different?

We don’t just resell—we manufacture. At Jiangxi Jinlong New Materials Co., Ltd., we produce:

  • Glass countersink drill bits

  • Diamond core drill bits

  • CNC glass drilling tools

  • Customized drill bit solutions

All our bits are made using high-grade industrial diamonds, optimized bond types (metal, resin, electroplated), and strict tolerance control. And the best part? We offer OEM supply and factory-direct pricing, so you get premium tools without the middleman markup.

Yup, we got you covered.


Application Areas for Glass Drill Bits

  • Tempered glass hole processing

  • Bathroom glass and furniture glass

  • Architectural and building facades

  • Automotive glass components

  • Solar panel glass processing

Whether you’re a wholesaler, OEM buyer, or CNC factory owner, choosing the right drill bit saves time, money, and headaches.


Wait… Will Any Drill Bit Work on Glass?

Nope. Not even close. Using standard steel or carbide drill bits will:

  • ❌ Overheat and shatter the glass

  • ❌ Cause chipped or irregular holes

  • ❌ Reduce production efficiency

  • ❌ Damage your CNC equipment

It don’t worth the risk—always go for diamond-tipped glass drill bits engineered for precision.

(Yes, that sentence had a grammar mistake… on purpose 😉)


Get the Drill Bit That Works as Hard as You Do

If you want to avoid downtime, improve finish quality, and keep your clients happy, upgrading to a professional-grade glass drill bit is the way to go.

Jiangxi Jinlong, as a leading glass drill bit manufacturer and supplier in China, delivers:

  • Factory-direct pricing

  • Strict quality control

  • Fast delivery worldwide

  • Custom OEM services for distributors

Let’s make glass drilling less stressful—and a whole lot more productive.