These M14 diamond core drill bits are made for drilling granite and other hard stone materials. The set includes multiple small-diameter drill bits for different hole sizes, suitable for stone fabrication, countertop work, and installation-related drilling.

The M14 thread makes them suitable for compatible stone polishing machines, angle grinders, or drilling tools with the correct adapter and water control. For best performance, the drilling method, machine speed, cooling method, and material hardness should be confirmed before use.

Drill Details
• Product: M14 diamond core drill bits for granite
• Thread: M14
• Length: 68mm each
• Sizes Range:

• 6mm × 1 pc
• 8mm × 1 pc
• 10mm × 1 pc
• 12mm × 1 pc
• 16mm × 1 pc
• 20mm × 1 pc
  • Application: Granite drilling
  • Suitable material: Granite and stone materials
  • Use: Small hole drilling for stone fabrication and installation work