lathe center, centre, center
teraskoonus (üldjuhul tipunurgaga 60o) mille abil toorik paigaldatakse (kinnitatakse tsentrite vahele) töötlemiseks tööpinki, a tool that has been ground to a point to accurately position a workpiece on an axis; they usually have an included angle of 60o, but in heavy machining situations an angle of 75o is used
