28mm Diamond Coating Drill Bits Hole Saw Long Life Hole Cutter Opener for Glass Ceramic Tile Marble Ceramics Bottles Etc 3PCS

1. Dimond Hole Saw Diameter: 28mm; Cutting Depth: 40mm; Shank Diameter: 10mm; Shank Height: 70mm. 2. These diamond drill bits hole saw set are ideal for work where high performance and accuracy are needed. Excellent for extensive work with Tile Drill Glass Marble Granite Ceramics Porcelain Ceramic Tile Marble ETC. 3. The high-quality diamond drill bits with thicker diamond coating make the edge of the groove sharper which can achieve clean smooth and accurate holes cut up to 40mm deep with no broken edges. 4. Diamond hole saws cutting edge provides diamond coated teeth which made of metal with alloy with higher toughness stronger wear resistance and higher performance cutting strength. With 10 years long life use 5. Best service: we strive to provide you with quality products