apex ecomm 6mm, 8mm Diamond Coated Hole Saw Drill Bits 2pcs combo pack for Glass Ceramic Tile Marble Rock Porcelain
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Size - 3mm Drilling Diameter, 5mm Shank(5pcs); 8mm Drilling Diameter, 5mm Shank(5pcs)Diamond Coated - Diamond coating enhances the drilling speed, which makes the bit sharper.Nickel Plated Surface - The nickel plating surface can extend the service life and enhance surface corrosion resistance.Special Design - Side open can remove the waste to keep the drill bit clean.Applications - Perfect for drilling glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, light stone and fiberglass. (Need to be used at a low speed; Always use lubrication
