Min. Order Reference FOB Price
5 Pieces US$1.00-3.00 / Piece
Product Description
M14 Core Drill Bit Dry Vacuum Brazed Diamond Drill Bit Set For Stone Drilling This type of hole opener adopts brazing process, which greatly improves the exposure rate of diamond, so that its service life is much higher than that of electroplated drills and the sharpness is much higher than ...