Drilax 1-3/8" Diamond Hole Saw Kit – With Water Delivery & Precision Guide for Granite, Tile, Quartz & Glass

• Countertop Installation: The go-to tool for 1-3/8" holes for kitchen faucets in granite and quartz slabs.
• Bathroom Remodeling: Drilling through heavy porcelain tiles for shower mixing valves or plumbing lines.
• Glass & Mirrors: Precise, chip-free drilling in thick glass panels or mirrored walls.
• Commercial Stonework: High-precision core drilling for luxury hotel and office renovations.

• Surface Preparation: Clean the countertop surface to ensure the mounting gaskets adhere properly.
• Guide Setup: Place one of the 12 included mounting gaskets on the guide base. Position the guide exactly where the hole is needed and press down firmly.
• Water Filling: Fill the integrated water cup. This provides constant lubrication to the diamond edge, preventing overheating and suppressing dust.
• Drilling: Insert the 1-3/8" hole saw into your drill chuck. Place the bit inside the guide and start drilling at a moderate speed. The guide will keep the bit perfectly centered.
• Finishing: Once the cut is complete, remove the guide and wipe away the water and debris.

Drilling faucet holes in kitchen or bathroom countertops

Soap dispenser or water line installations

Cutting clean holes in granite, quartz, marble, ceramic, and glass

DIY remodeling and plumbing upgrades

• Hole Diameter: 1-3/8 inches
• Coating: Triple-Layer Vacuum Brazed Diamond
• Shank: 3/8" Universal Round Shank
• Guide Type: Adjustable with Integrated Water Cup
• Gaskets included: 12 Mounting Gaskets
• Compatibility: Granite, Quartz, Marble, Porcelain, Ceramic, and Glass

Q: Will this work with my standard electric-cordless drill?
A: Yes, the 3/8" shank is compatible with all standard drills.

Q: How thick of a surface can this cut through?
A: The bit can drill through materials up to 1-3/16 inch (3 cm) thick.

Q: Is water required while drilling?
A: Yes, use the included water cup to prevent overheating and ensure clean cuts.

Q: Can I use this on granite or quartz countertops?
A: Absolutely, it's designed for hard materials like granite, quartz, porcelain, and glass.

Q: How many holes can I drill with one bit?
A: With proper cooling, this bit can drill multiple holes without degradation.

Q: What is the benefit of the water delivery system?
A: Diamond bits generate significant heat. The built-in water cup ensures the cutting edge stays cool, which prevents the bit from burning out and protects your expensive countertop from heat-induced cracking.

Q: Does this kit fit standard power drills?
A: Yes. The hole saw features a standard 3/8" round shank that fits all standard corded and cordless drills. No special adapters are required.

Q: Can I use this on 3cm thick countertops?
A: Absolutely. This bit is specifically engineered with an increased body height to drill through 3cm (approx. 1.2 inch) thick granite and quartz in a single pass.

Q: Are the mounting gaskets reusable?
A: The kit includes 12 gaskets to get you through multiple projects. They provide a secure, non-slip grip to ensure the guide doesn't move during the drilling process.