Collection: Cobalt Series Vacuum Brazed Hole Saws

The Cobalt Series uses vacuum brazed diamond for fast cutting and long life in the hardest tile and stone: granite, quartz, porcelain, marble and glass. Sizes from 1 inch to 4 inch.

• Vacuum brazed diamond on a solid steel body.
• 1-3/8" depth of cut – enough for 3cm countertops.
• 3/8" triangular shank for a standard drill.
• Wet drilling. No pilot bit – start at an angle or use a guide.

Compare all series in the series comparison.