1set/6pcs Diamond Drill Core Bits Granite Marble Ceramic M14 Thread Hole Saw

Item: Vacuum brazed diamond core bits set with Box Quantity: 6pcs products with box  Connection: M14 Thread Specificiation:  Drill Bit: Diameter 20mm, 25mm, 35mm, 50mm, Total length: 60mm,               Diamond height 10MM; Diamond Finger Bit: Diameter 20mm, Working length 50mm, Total Length 65mm Chamfer Bit: Diameter 50mm, Working length 46mm, Total length 55mm,  Grit #80 Box Size: 22x15x8.5CM Application:  1. Drill Bit: Dry/wet drilling for porcelain tile, granite, marble, ceramic; 2. Finger Bit: Enlarge, shape and/or round bevel existing holes in Porcelain, Hard Ceramic, marble and granite 3. Chamfer Bit: For chamfering, widening, grinding and polishing exit holes. 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