Description: Perfect for drilling holes in tiles, ceramic or wall mirrors Strong toughness and wear resistance, can be installed in the hand drill, electric drill. Small cutting resistance, improve the trepanning Provide smooth, accurate drilling in ceramic tile, marble, china, mirrors and glass High quality carbide with a reinforced head that prevents bit cracking and provides a longer life Specification: Material: YG6 Carbide Color: Silver Size Chart: 3mm: Total length: Approx. 50mm/1.97inch 4mm: Total length: Approx. 60mm/2.36inch 5mm: Total length: Approx. 65mm/2.56inch 6mm: Total length: Approx. 65mm/2.56inch 7mm: Total length: Approx. 65mm/2.56inch 8mm: Total length: Approx. 68mm/2.68inch 10mm: Total length: Approx. 80mm/3.15inch 12mm: Total length: Approx. 90mm/3.54inch 14mm: Total length: Approx. 105mm/4.13inch 16mm: Total length: Approx. 110mm/4.33inch Package Includes: 5 Pieces Drill Bits Note: 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.