A bit with no moving parts which consists of either a steel body or a matrix. It has large, man-made diamonds called blanks on the bottom that are designed to shear away the rocks.
PDC bit design is influenced by nine variable: (a) bit body material; (b) bit profile; (c) gauge protector; (d) cutter shape; (e) number or concentration of cutters; (f) location of cutter; (g) cutter exposure; (h) cutter orientation and, (i) hydraulics.