16Pcs Porcelain Hole Drill Bit Set Professional Grade Glass Tile Marble Ceramic Hole Kit Durable Emery Material Electroplated Construction for Precision Drilling in Hard M

Item Type: Porcelain Hole DrillSpecification: Approx. 6mm / 0.2in8mm / 0.3in10mm / 0.4in12mm / 0.5in14mm / 0.55in16mm / 0.63in18mm / 0.7in20mm / 0.8in25mm / 1in30mm / 1.2in35mm / 1.4in40mm / 1.6in45mm / 1.8in50mm / 2in55mm / 2.2in60mm / 2.4inMaterial: EmeryProduction Process: ElectroplatingApplicable Industry: Glass deep processingUses: Holes in glass, tiles, marble, ceramics, etc.Package List：1 x 6mm Hole Drill1 x 8mm Hole Drill1 x 10mm Hole Drill1 x 12mm Hole Drill1 x 14mm Hole Drill1 x 16mm Hole Drill1 x 18mm Hole Drill1 x 20mm Hole Drill1 x 25mm Hole Drill1 x 30mm Hole Drill1 x 35mm Hole Drill1 x 40mm Hole Drill1 x 45mm Hole Drill1 x 50mm Hole Drill1 x 55mm Hole Drill1 x 60mm Hole Drill

• [PROFESSIONAL-GRADE PERFORMANCE] Engineered for demanding applications, these porcelain hole drill bits deliver exceptional cutting precision through glass, tile, marble, and ceramic surfaces. The specially formulated emery material maintains sharpness through multiple uses, while the electroplated construction prevents premature wear for consistent hole cutting performance.
• [COMPREHENSIVE SIZE SELECTION] This 16-piece set includes every essential size from 6mm to 60mm, covering virtually any drilling requirement. Each precisely calibrated bit creates perfectly round holes without chipping or cracking, making it ideal for plumbing installations, electrical work, and decorative projects in hard materials.
• [INDUSTRY-LEADING DURABILITY] Unlike conventional drill bits that dull quickly, our emery-coated bits feature reinforced cutting edges that withstand heavy use. The rust-electroplating ensures long-term performance, even in wet working conditions, providing professional results for both contractors and DIY enthusiasts.
• [USER-FRIENDLY DESIGN] Optimized for effortless operation with standard power drills, these bits feature an innovative flute design that minimizes heat buildup and clears debris efficiently. The balanced weight distribution reduces operator fatigue, while the clearly marked sizes allow for quick identification during projects.
• [VERSATILE MATERIAL COMPATIBILITY] Specifically engineered to handle the toughest materials, this set performs equally well on glass shower doors, ceramic backsplashes, marble countertops, and porcelain tiles. The specialized cutting geometry prevents wandering and ensures clean entry and exit holes for professional-looking results every time.