Sheets of metal tile are necessary for roofing works on roof. It is the durable, strong modern material resembling the classical roof collected from piece carved tile superficially. But at the same time material is produced on new technologies and is quite suitable for construction jobs even by forces of the beginning masters. However there is one nuance: that at independent cutting and mounting of metal tile not to do mistakes and not to spoil roof, having reduced its durability from 10-20 to 1-2 years, it is important to use tools which it can be cut.
Granite is one of the most hardly processed materials, it is very firm and at the same time brittle. That to drill it, it is necessary to follow accurately some rules, otherwise it can crack.