DIAMOND IMPREGNATED BIT WITH AGGRESSIVE FACE PROFILE

摘要

A drill bit having a shank and a crown. The Crown defines a central axis and has at least one fixed segment. Each fixed segment has a cutting face and a plurality of surface features that are continuous with a distal surface of the cutting face, each segment being spaced from the central axis of the crown and comprising. The plurality of surface features and a distal portion of the cutting face of each segment are integrally formed of a selected matrix material, and each surface feature consists solely of the selected matrix material. The matrix of the selected matrix material is configured to erode to expose the abrasive particles within the matrix.