7/8 Inch Diamond Hole Saw Drill Bit – Glass, Tile, Porcelain & Granite (Chrome Series)

• Materials: Glass, porcelain, ceramic, tile, granite, quartz, marble and natural stone.
• Tool Compatibility: Standard corded and cordless drills and drill presses.
• Not For: Concrete, brick, metal or wood. Do not use hammer mode.

• Mark & Wet: Mark the hole and add a puddle of water, or spray or drip water on the spot.
• Start at an Angle: Hold the drill at about 45 degrees and drill slowly to cut a C-shaped groove. A scrap-wood template taped to the surface also keeps the bit from wandering.
• Bring to Vertical: Slowly bring the drill upright and keep the cut wet.
• Light Pressure: Use low speed and let the diamonds do the work. Dip the bit in water every 20–30 seconds and push the core out through the side slot.

• Kitchen: RO and filtered water faucet holes in granite and quartz.
• Electrical: Holes for 1/2 inch conduit in tile and cement board.
• Planters & Bottles: Drainage holes in pots and holes in glass bottles.
• Tile: Small fixture openings in porcelain and ceramic.

• Hole Diameter: 7/8 inch
• Depth of Cut: 1-1/8 inches
• Shank: 3/8 inch standard
• Body: Solid steel, chrome nickel finish
• Cutting Surface: Triple-layer electroplated diamond
• Pilot Bit: None (start at an angle or use a guide)
• Use Type: Wet drilling

Q: What materials can it drill?
A: Glass, porcelain, ceramic tile, granite, quartz, marble and natural stone. It is not designed for concrete, brick, metal or wood.
Q: Do I need water?
A: Yes. This is a wet-use bit. Keep the cut wet to cool the diamonds, control dust and get a clean, chip-free hole.
Q: How do I start without a pilot bit?
A: Start at about a 45 degree angle to cut a small groove, then bring the drill upright. A scrap-wood template with a matching hole also works.
Q: Will it fit my drill?
A: Yes. The 3/8 inch standard shank fits most corded and cordless drills and drill presses.
Q: What is the difference between Chrome and Vacuum Brazed hole saws?
A: Chrome Series bits have an electroplated diamond coating and are a great value for glass, tile and occasional stone work. Vacuum brazed bits have a thicker diamond layer for heavy use on granite and quartz.