Specifications: Made of high quality diamond material, it is durable, solid and has long service life. The diamond drill bit is perfect for hole cutting on marble, alloy walls, metal vitrified tiles, ceramic tiles. This product can make fast and smooth drilling, which is long-lasting, chip-resistant and shatter-resistant. Item Name: Drill Bit Material: Diamond Features: Durable, Drilling Tool, High Hardness Drill Bit Height: 83mm/3.27" (Approx.) Size Chart: 30mm: Product Hole Diameter: 30mm/1.18", Product Size: 8.3 x 3 x 3cm/3.27" x 1.18" x 1.18" (Approx.) 35mm: Product Hole Diameter: 35mm/1.38", Product Size: 8.3 x 3.5 x 3.5cm/3.27" x 1.38" x 1.38" (Approx.) 40mm: Product Hole Diameter: 40mm/1.57", Product Size: 8.3 x 4 x 4cm/3.27" x 1.57" x 1.57" (Approx.) 45mm: Product Hole Diameter: 45mm/1.77", Product Size: 8.3 x 4.5 x 4.5cm/3.27" x 1.77" x 1.77" (Approx.) 50mm: Product Hole Diameter: 50mm/1.97", Product Size: 8.3 x 5 x 5cm/3.27" x 1.97" x 1.97" (Approx.) 55mm: Product Hole Diameter: 55mm/2.17", Product Size: 8.3 x 5.5 x 5.5cm/3.27" x 2.17" x 2.17" (Approx.) 60mm: Product Hole Diameter: 60mm/2.36", Product Size: 8.3 x 6 x 6cm/3.27" x 2.36" x 2.36" (Approx.) 65mm: Product Hole Diameter: 65mm/2.56", Product Size: 8.3 x 6.5 x 6.5cm/3.27" x 2.56" x 2.56" (Approx.) 70mm: Product Hole Diameter: 70mm/2.76", Product Size: 8.3 x 7 x 7cm/3.27" x 2.76" x 2.76" (Approx.) 75mm: Product Hole Diameter: 75mm/2.95", Product Size: 8.3 x 7.5 x 7.5cm/3.27" x 2.95" x 2.95" (Approx.) 80mm: Product Hole Diameter: 80mm/3.15", Product Size: 8.3 x 8 x 8cm/3.27" x 3.15" x 3.15" (Approx.) 85mm: Product Hole Diameter: 85mm/3.35", Product Size: 8.3 x 8.5 x 8.5cm/3.27" x 3.35" x 3.35" (Approx.) 90mm: Product Hole Diameter: 90mm/3.54", Product Size: 8.3 x 9 x 9cm/3.27" x 3.54" x 3.54" (Approx.) 95mm: Product Hole Diameter: 95mm/3.74", Product Size: 8.3 x 9.5 x 9.5cm/3.27" x 3.74" x 3.74" (Approx.) 100mm: Product Hole Diameter: 100mm/3.94", Product Size: 8.3 x 10 x 10cm/3.27" x 3.94" x 3.94" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Drill Bit