==================DESCRIPTION=================
Vacuum brazed diamond core bits with round shank, dry drilling bits, professional quality
Quantity: 5pcs (6mm+8mm+10mm+12mm+14mm)
Specificiation: round shank
Application: Dry drilling for porcelain tile, granite, marble
Feature: 1.Fast and Smooth drilling, 2.Long lifetime 3.Less Chipping 4.Minimizing any breakage 5.Less loss of material 6.Less heat generation 7.Better finish quality