Sverlo 9mm Tolsen for glass - is a reliable and high-quality drilling tip designed specifically for use in battery materials such as glass, ceramics and tiles. This 9 mm diameter allows this drill tip, secure and accurate drilling in glass and other subtle materials. The Sverlo, which is made by Tolsen brand, has a special designation to help prevent the broken glass and ceramics during drilling. Tungsten-carbide tip provides high sharpness and longevity by penetrating the surface of the material. The spiral design supports the easily removal of dust and excavations generated during drilling, which ensures more clean and efficient work results. Both professional masters and DIY (unique work) projects are a valid, stable and long-term tool for users. Shows perfect drilling performance on glass and ceramics.