Foret diamanté pour perçage à sec, outil multifonction pour carrelage, granit, marbre, verre, béton et matériaux durs, accessoire pour perceuse et travaux de bricolage

Brazed diamond drill bit dry tile drill, tile drill for granite marble glass Concrete hard material, multi-functional drill bit Dry hole opener [diamond core drill] Diamond dry drill bit is made of high quality electroplated gold steel grains, with high temperature fire resistance, high hardness, sharpness and durability. Diamond dry drill