1set/10pcs Diamond Drill Core Bits Granite Marble Ceramic Hole Saw M14 Thread

Item: Vacuum brazed diamond core bits set with Box Quantity: 10pcs products with box  Connection: M14 Thread Specificiation:  Drill Bit: Diameter 6mm, 6mm, 20mm, 25mm, 35mm, 50mm, 75mm, 100mm;               Total length: 60mm,Diamond height 10MM; Chamfer Bit: Diameter 50mm, Working length 46mm, Total length 55mm,  Grit #80 Adapter: M14 male thread to hexagon shank adapter , total lengt 53MM, shank length 28MM Box Size: 22x15x8.5CM Application:  1. Drill Bit: Dry/wet drilling for porcelain tile, granite, marble, ceramic; 2. Chamfer Bit: For chamfering, widening, grinding and polishing exit holes. 3. Aapter: M14 thread core bits can be fitted on hand drill or electric drill with hexagon shank adapter Feature:  1. Vacuum brazed technology provide high efficient working performance 2. Fast and Smooth drilling 3. Long lifetime  4. Less Chipping  5. Minimizing any breakage