Montolit 35mm Diamond Core Bit for Dry Drilling (FS-35)The line of diamond core bits dry use FS Mondrillo have been designed by Montolits R&D department in order to answer tilers need for a very fast tool, capable of drilling, without water, any type of ceramics and porcelain tiles. Due its high quality, this diamond drilling cup quickly became popular also in the plumbing world. Although its appearance is almost identical to other similar products, its performance is much higher, thanks to the use of