Sverlo 4mm Tolsen for glass - is an ideal choice for safe and accurate drilling in fine materials such as glass, ceramics and tiles. 4 mm diameter This drilling end is perfect for making accurate drivers in especially thin and breaking materials. This Sverlo, which is produced by Tolsen, has a special design that works on glass and ceramics, minimizing the risk of breaking material. Thanks to tungsten-carbide tip, high sharpness is provided in hard materials and protects the loss for a long time. The spiral design helps to be easily removed from dust and excavations generated during drilling. It offers a high quality and reliable tool for those dealing with both professional masters, both professional masters and DIY (unique work) projects. Provides perfect drilling performance on glass and ceramics.