Description of Kyuionty Diamond Coated Ceramic Porcelain
Package Content: 15pcs Diamond Coated Hole Saw Drill Bits 6mm (1/4 Inch). Shank Diameter: 5.5mm/ 0.216 inch. Diamond Coated: The drill bit is sharper, which can increase the drilling speed. Application: Suitable for drilling glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, marble, light stone and fiberglass. Note: Water needs to be added for cooling during use in order to extend the life of the hole saw drill bit; Please use low speed and uniform speed drilling. 100% Satisfaction Guarantee: Our products are backed by quality customer service to ensure that your satisfaction is guaranteed. If for any reason you do not like our products, you can return them unconditionally within 90 days and get a full refund.