Diamond Drill Bit Set | 6-Piece M14 Thread | For Porcelain, Granite & Marble
-21%Save $95.99 on 10 units
$86.39
per unit
Save $359.96 on 25 units
$81.59
per unit
Save $863.91 on 50 units
$78.71
per unit
Save $1,919.80 on 100 units
$76.79
per unit
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Achieve clean, precise holes in hard materials with this 6 Pcs M14 Thread Diamond Dry Drill Bit Set. Engineered for dry drilling, this vacuum-brazed set delivers superior heat dissipation and extended...
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Questions about this product
- Will these drill bits fit my angle grinder?
- Yes. They use an M14 universal thread that fits most standard angle grinders and drill adapters. No special tools are needed to swap them on. Just confirm your grinder spindle is M14, which is the common size.
- Do I need water to drill with these bits?
- No, these are made for dry drilling. The diamond grit and segment spacing clear dust and prevent overheating without water cooling. Keep the speed in a low-to-medium range, around 500 to 1500 RPM, on hard stone.
- What materials are these diamond bits meant to cut?
- They're built for hard, brittle materials: porcelain tile, granite, and marble. The full crown design cuts from the whole rim for clean starts and edges. Common uses include holes for plumbing, electrical, and hardware fittings.
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