Drilax 1-3/8 Inch Diamond Hole Saw Drill Bit for Tile, Glass, Granite & Quartz

Drilax 1-3/8 Inch Diamond Hole Saw Drill Bit

The Drilax 1-3/8 Inch Diamond Hole Saw Drill Bit from the Cobalt Series is engineered for precision drilling in hard, dense materials. Built with vacuum brazed diamond technology, this commercial-grade hole saw delivers smooth, accurate cuts and long service life when drilling ceramic tile, porcelain, glass, quartz, granite, marble, and cement backer board.

With its taller cutting body, this 1-3/8 inch diamond hole saw is designed to drill through full 3cm (1.2") thick countertops in a single pass. It is an ideal solution for faucet installations, plumbing penetrations, and fixture mounting in stone and tile applications.

Key Features

• Vacuum Brazed Diamond Cutting Edge
  High-density diamond bonding provides faster cutting, smoother hole edges, and extended tool life.
• Extra-Long (Tall) Cutting Body
  Tall enough to drill through 3cm thick granite, quartz, and stone countertops without extensions.
• Wide Material Compatibility
  Designed for ceramic tile, porcelain tile, glass, marble, quartz, granite, and cement backer board.
• Standard 3/8" Shank
  Fits securely in standard corded and cordless drills with no adapters required.
• Rigid Alloy Steel Body
  Maintains stability under load for clean, round holes with reduced vibration.

Where a 1-3/8 Inch Diamond Hole Saw Is Most Useful

• Kitchen Faucet Installations – Common size for modern faucet and accessory holes
• Bathroom Fixtures – Shower valves, spouts, and trim penetrations
• Plumbing Pass-Throughs – Water supply and drain line routing
• Stone & Tile Countertops – Clean holes through 3cm granite and quartz slabs
• Ceramic Pots & Planters – Drainage holes in thick pottery
• Aquariums & Fish Tanks – Bulkhead and plumbing holes in glass panels

Compatible Materials

• Ceramic and porcelain tile
• Glass and glass panels
• Quartz and granite countertops
• Marble and natural stone
• Cement backer board

Technical Specifications

• Diameter: 1-3/8 Inches (1.375")
• Series: Cobalt Series
• Technology: Vacuum Brazed Diamond
• Shank Size: 3/8 Inch (Standard)
• Color: Navy Blue
• Application: Wet drilling recommended
• Tool Compatibility: Corded drills, cordless drills, drill presses
• Pack Size: Single (1-Pack)
• Condition: New

Why Choose Drilax?

Drilax diamond hole saws are trusted by professionals for their commercial-grade durability, precision engineering, and consistent performance across tile, stone, and glass. Designed for demanding countertop and renovation work, Drilax tools help deliver clean results on every project.

Frequently Asked Questions

Q: What is a 1-3/8 inch diamond hole saw commonly used for?
A: A 1-3/8 inch diamond hole saw is commonly used for kitchen faucets, bathroom fixtures, plumbing pass-throughs, and drilling through 3cm granite or quartz countertops.

Q: Can this drill through a full 3cm thick granite or quartz countertop?
A: Yes. This hole saw features a tall cutting body designed specifically to drill through 3cm (1.2") thick stone countertops in a single pass.

Q: Is water required when using this diamond hole saw?
A: Yes. This is a wet-use diamond hole saw. Water is required to cool the bit, reduce dust, and extend tool life.

Q: Will this work with a cordless drill?
A: Yes. The standard 3/8 inch shank fits securely in both corded and cordless drills.

Q: Can this be used on porcelain tile and glass?
A: Absolutely. It is designed for smooth, controlled drilling in porcelain tile, ceramic tile, and glass.

Q: Is this suitable for DIY users?
A: Yes. Experienced DIY users can achieve professional-quality results by using low RPM, steady pressure, and proper water cooling.

Product Identifiers

• UPC: 850004328293
• EAN: 0850004328293