DescriptionThis drill bits is well made of high strength material with durable smooth processed for practical use. It removes a complete circle from glass, tiles, marble, granite, ceramic or other. With 10 different size, it is perfect for both professional and personal use.Feature- Color: Silver - Material: Stainless Steel. - Size: 9x1.7x1.7cm - Different sizes meets your requirement: Total 10 different sizes. - tooth profile with forward and backward inclination, strong penetration. - High-speed steel and stainless steel hole drill, sheet metal reamer for stainless steel, iron, aluminum, wood and various types of pipes. - Cuts quickly, precise holes in steel, stainless steel, iron, copper, brass, aluminum, fiberglass, formica and other laminates In seconds. - Suitable for Stone, Tiles, Ceramics, Glass and Granite, etc processing.