Description
Esta broca sirve para roca media, se recomiendan las brocas medias si se desconoce el tipo de roca a encontrar; gabbro, diabase, dolerita, mica esquistia, siststone, granito.
This drill bit is suitable for medium rock. Medium bits are recommended when the type of rock is unknown; gabbro, diabase, dolerite, mica schist, siltstone, granite.