Diamond Drill Bits M14 Thread for Porcelain Tile Granite Marble 25pcs/set 20mm-150mm

Specification: Diameter 20mm, 25mm, 28mm, 30mm, 32mm, 35mm, 38mm, 40mm, 43mm, 45mm, 50mm, 55mm, 60mm, 65mm, 68mm, 70mm, 75mm, 80mm, 90mm, 100mm, 110mm, 115mm, 125mm, 130mm, 150mm, Total height 60MM, Diamond height 15MM  Connection: M14 Thread Color: Golden Quantity: Total 25pcs (All sizes of golden diamond drill bits,each size 1 piece) Application :  Dry/wet drilling for porcelain tile, granite, marble, stone, Masonry, brick... Feature:  1.Less Chipping, Minimizing breakage, less heat generation, Better finish quality2.Vacuum Brazed technology provides longer working life, Fast and smooth drilling3.High diamond exposure rate provides a faster and more aggressive drilling4. Vacuum Brazed technology provide much longer working life than electroplated ones (Generally 3-5times),Save your money and time....5.Having less loss of material