1 Count Triangle Shank Diamond Drill Bit - 3-1/2" (90mm) for Ceramic, Stone, Tile

Our diamond tools are suitable for those Professionals or DIY enthusiasts,like the Builders,Tilers,Carpenters,Tinker,Roofers,Architects etc. When renovating your kitchen or bathroom walls or fastening mirrors in bathroom or installing shower, you will need to drill holes on mirrors or tiles without cracking them, hence you will need to use these Dry Diamond Drill Bits to make those holes very precise by our diamond finger bit or chamfer bit. They're your best choice and gifts. Application: Dry / wet drill for ceramic tile, granite, marble, stone, etc Features: 1. With many specifications and various functions, it is suitable for a variety of materials and has strong applicability; 2. Three sided handle design, handle diameter 10mm, more stable clamping and more stable drilling; 3. 6-14mm internal wax cooling, dry drilling without water; Improve the service life and reduce pollution. There is a spiral groove on the top of the bit, which is conducive to drainage and steadily improve the efficiency; 4. 20MM and above with 4 U grooves to improve the working efficiency of the hole drill; 5. The top 10mm of the drill bit is made of high-quality diamond combined with scientific proportion, with high hardness, compactness and long service life; PLEASE PAY ATTENTION : 1. Do not use impact mode if switching to equipment with impact mode; 2. Use the suction cup positioner to accurately locate the drilling position, or place the drilling hole at a 45 degree angle, move the drilling hole in a circular motion until the drill bit starts to penetrate the material, and then lift the drill bit to the vertical position and continue;

• 【Package Includes】1pc Vacuum Brazed Diamond Drill Bit:Diameter 3-1/2"Inch(90mm),Triangle shank,Diamond height 10mm,Total height 65MM
• 【Vacuum Brazed Diamond Technology】More Heavy Duty and Wear Resistant than electroplated diamond bit,provide very high efficiency,cuts faster,durable and sturdy
• 【Upgraded Design】High-quality diamond particles contribute to high efficiency and faster drilling speed; Triangle shank contributes to a more stable clamping.
• 【Diverse Functions】complete tool set can meet your various needs，You can drill holes of different sizes with drill bits and then shape and expand with a Chamfer Bit
• 【Machine】They can be used with hand drills, angle grinders, bench drills and most other machines.Notice: If using Hammer Drill,please shut off Hammer Mode,Recommend 2000-5000 RPM,Max 5000 RPM,the faster the better.