6PCS Diamond Hole Saw Angle Grinder Hole Opener M14 Thread 20 35 40 50 55 68mm Brazed Diamond Drill Bits for Glass Tile Ceramic Porcelain Marble Stone
- FINE PORTABLE CASE: The 6pcs diamond drill bits come with a compact aluminum box where the bits are not in use. You don't have to worry about the missing of any of them.
- STURDY AND DURABLE MATERIALS: The cutting edege of the diamond hole saw is made from a premium grade of diamond that delivers more effective performance than traditional carbide, or bi metal hole saw, can drill deep holes stably.
- M14 FEMALE THREAD: M14 screw design, the shank prevents slipping, has large torsion, high bearing capacity, and is very easy to drill.
- WIDE APPLICATION: The hole saw ensures a clean and accurate hole on hardest and abrasive materials like tile, granite, marble, glass, and other stone.
- HIGH PERFORMANCE: Thickened emery coating, uniform coating, improve wear resistance and life of hole opener, open hole is neat, smooth, no broken edges, no need to add water, incisive, can drill deep holes stably.