10 Pack Diamond Drill Bit Set, 6mm (1/4inch) Small Diamond Hole Saw Kit for Glass, Ceramics, Porcelain, Ceramic Tile, Marble
- HIGH QUALITY MATERIAL: The diamond drill bits are made of premium high-speed steel with nickel-plated coated body that resist corrosion. Thicken diamond coating on the tops offers the ability that each sharp bit for a few holes..
- CLEARANCE HOLE DESIGN: Drill bits set along with side clearance hole facilitates the entrance of cooling water and escape of chips, making the drilling process easier and relaxiable..
- WIDE APPLICATION: The diamond coated drills are perfect for drilling glass, tiles, porcelain stoneware, granite slabs, tiles. Fit for any diamond tipped drill bits of any brand..
- TIPS: Start drill at 45 Degree to surface and align to 90 Degree as hole forms.Water is required to cool down the drill when using them..