The PTC Large Diameter Diamond Crowns are for drilling holes for large fasteners and anchors, water pipes, shower heads and faucets, and waste and toilet drain pipes. Packaged in a clear plastic tube with instructions.

• 1/4" continuous diamond crown matrix renews a new cutting surface with each cut for faster cuts and longer life.
• Unique profile produces very accurate and neat holes.
• Specially designed diamond crown construction reduces drag and allows for easy tile slug removal.
• Life expectancy of the Diamond Crown is 1000+ holes in Porcelain tile with proper usage.
• Holes can be drilled in as little as 1 minutes.
• The PTC Large Diameter Diamond Crown must be used with a No. PTC-WFA-LDC Water Feed Arbor.
• Maximum depth of cut: 3/4".