Global Leading Diamond Tool Manufacturer.
Johnson Tools OD6-50mm Ultimate Glass & Tile Drill Bit Set: Fast & Effortless Hollow Core Drilling for Glass, Ceramics, Porcelain
Specifications:
Achieve professional, chip-free holes in delicate materials with the Johnson Tools Ultimate Glass & Tile Drill Bit Set. This comprehensive 15-piece kit features high-quality Electroplated Diamond coated steel bits ranging from 6mm to 50mm. Designed for DIY enthusiasts and crafters, these hollow core bits are perfect for drilling into Glass Bottles, Ceramic Pots, Porcelain Tiles, and Marble vanity tops with standard electric drills.
Diameter: 6-50mm
Shank Type: 3/8" shaft/ round
Drill Bit Type: Tile Drill Bit
Technology: Electroplated
Material Compatibility: Drill Glass, Tile Bottles, Blocks Jars, Fiberglass Porcelain Tile Ceramic, Slate Mable, Granite Light Stone.
Operating Conditions: Dry or Wet use
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PRODUCT ADVANTAGES
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PRODUCT parameter
| Outside diameter | Shank | Drill depth |
| 6mm | 5.4mm | 35mm |
| 8mm | 6.4mm | 30mm |
| 10mm | 6.5mm | 30mm |
| 12mm | 6mm | 30mm |
| 14mm | 7mm | 30mm |
| 16mm | 8.2mm | 30mm |
| 18mm | 8mm | 30mm |
| 20mm | 8mm | 30mm |
| 22mm | 9mm | 30mm |
| 25mm | 9mm | 30mm |
| 26mm | 9mm | 30mm |
| 28mm | 9mm | 30mm |
| 30mm | 9mm | 30mm |
| 40mm | 9mm | 30mm |
| 50mm | 9mm | 30mm |
product usage
Versatile :
This diamond grit drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication.
Complete Size Range (6-50mm):
Includes every size you need for home projects. Use the small sizes (6-10mm) for wire feed holes and anchors, and the large sizes (20-50mm) for plumbing pipes and faucet installations.
There are many positive reviews from customers.
Clean, Smooth Cuts:
Unlike carbide spear-point bits that can crack glass, these hollow hole saws grind a perfect circle, leaving smooth edges with no breakout.
Versatile Application:
Ideal for:
Crafts: Drilling drainage holes in ceramic plant pots or wine bottles.
Renovation: Installing shower doors and accessories on tile walls.
Kitchen/Bath: Cutting holes for pipes through ceramic tiles.
FAQ
Q: How can I drill a hole in a glass
bottle or porcelain tile without cracking it?
- A: To achieve professional,
chip-free results, use an electroplated diamond core drill bit.
Start drilling at a 45-degree angle to create a "starting
notch," then gradually move to 90 degrees. Our high-quality diamond
core drill bits for stone and glass use a grinding action rather than
cutting, which prevents the shattering often caused by standard carbide
bits.
Q: Why is this 15-piece set the best
option among all diamond core drill bits for sale online?
- A: This ultimate kit covers the
most popular sizes (6mm to 50mm) needed for DIY and professional projects.
When looking for diamond core drill bits for sale, versatility is
key. Our electroplated bits are perfect for drilling glass bottles,
ceramic pots, and even marble vanity tops, providing a
"success-in-a-box" solution for any crafter or installer.
Q: What is the secret to extending the
lifespan of my diamond core drill bits for stone?
- A: Heat is the enemy of
electroplated diamonds. Always use a water spray bottle to keep the bit
and material cool. Unlike sintered bits, electroplated diamond core
drill bits for stone have a thin layer of diamond coating; maintaining
low RPM (below 1000) and using constant lubrication will ensure you get
50+ holes out of a single bit.
Q: Do I need a special machine for these
diamond core drill bits for sale, or will a standard drill work?
- A: Our bits feature a 3/8"
round shank (or standard straight shank), making them compatible with
almost all standard corded or cordless electric drills. Whether you are
using them as diamond core drill bits for stone or glass, ensure
you switch off the "Hammer" or "Impact" mode to
prevent damaging the fragile diamond coating.
Q: Can these bits be used as heavy-duty
diamond core drill bits for stone like granite and slate?
- A: Yes, these bits are highly
effective on light stone like slate and marble. However, for dense
porcelain or granite, we recommend a slower speed and plenty of water. If
you are browsing diamond core drill bits for sale specifically for
thick granite countertops, these hollow core bits are excellent for making
clean, precise entry points without surface chipping.
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