Mollom 13/16" (21mm) Diamond Hole Saw with 2Pcs Removable Pilot Drill Bit Smooth Cutting for Porcelain Tiles,Glass,Ceramic,Marble,Fiberglass,etc

Mollom 13/16" (21mm) Diamond Hole Saw with 2Pcs Removable Pilot Drill Bit Smooth Cutting for Porcelain Tiles,Glass,Ceramic,Marble,Fiberglass,etc

【Dimension】Cutting Dia: 21mm | 13/16";Shank Dia: 10mm | 3/8" ;Hole Saw Depth: 35mm | 1-3/8" 【High Quality Material】The drill bit is brazed with high quality diamond grain, which is evenly distributed provide fast and smooth drilling, ensure longer workable life 【Easy To Get Start】Each Hole Saw with two removable pilot bit：1 x Diamond Tipped Pilot Bit; 1 x Center Pilot Bit. No special guiding tools needed 【Widely Used】This Diamond Hole saw apply to standard 3/8" Shank for Standard Drills. Perfect for Porcelain Tiles, Glass,Ceramic,Marble,Granite,Light Stone,Fiberglass,etc. Note: Cannot be used for Metal 【How To Use】 1.Install the pilot drill for positioning. 2.Remove the pilot drill and continue punching the hole with a slight rotation. 3. You will get a hole with a smooth interior. Note: You need to add water or coolant during the drilling process to ensure the quality of the hole and extend the life of the hole saw 【Note】After each cut, it is essential to promptly remove the debris inside the hole saw. If two pieces of debris stack up, they will clog the hole saw, making it impossible to remove Mollom 13/16" (21mm) Diamond Hole Saw with 2Pcs Removable Pilot Drill Bit Smooth Cutting for Porcelain Tiles,Glass,Ceramic,Marble,Fiberglass,etc