In these non-criminal contexts, the victim can sue the harasser in a private civil lawsuit, alleging that the harassment constitutes discrimination. On the other hand, criminal harassment is usually confined to state law. States vary in how they define criminal harassment. Generally, criminal harassment entails intentionally targeting someone else with behavior that is meant to alarm, annoy, torment or terrorize them.
Cobalt drill bits are most commonly used for drilling stainless steel and other metals. Diamond Drill Bits. Polycrystalline diamond (PCD) is one of the hardest tool materials. It actually consists of a layer of diamond particles bonded to a carbide support.
Drill press spindle speeds depend on lots of things: the type of material being drilled and its hardness, the hole size, the type / hardness of the drill bit and its sharpness, whether or not a cutting / cooling fluid is used, and the rigidity of the drill and clamp, among others.