Mgtgbao 6pc Green 3/16” Dry Diamond Drill Bits Set，6PCS 5mm Hex Shank Core Drill Bit Brazed with Cooling Wax for Porcelain Tile Ceramic Concrete Granite Marble Hard Materials (not for Wood).

Mgtgbao Dry Diamond Drill Bits :6pc 3/16” (5mm) with Hex Shank for Porcelain Tile Ceramic Marble Feature: Multi-purpose drilling for granite & marble, masonry, concrete, tile/ceramic, stone Wax inside for cooling,our Diamond Tipped Drill Bits have wax cores built-in which automatically absorb and dissipate heat as you go Dry drilling and Use water for longer time.Notice:Please use with water when drilling granite Vacuum Brazed diamond technology provide very high efficiency,cuts faster and lasts longer Size: 3/16” (5mm) Quality:6pcs Lengthen :65mm Package includes: 6pc 3/16 inch (5mm) diamond drill bits diamete 1 x Gray Storage Case Using Steps: Step 1: Start Drilling the hole in an angle about 45 degrees to the surface, so the drill has the chance to start and will prevent the drill slipping Step 2: Slowly move the drill bit into a more up-right position and wobble the drill bit in the circular motionStep 3: Do not need to apply much pressure, let the drill bit do the work, you will feel the drill bit break through the back of the glass or tile once the hole is completed Step 4: Take care when using them as a bit can glaze and burn out if use too fast

• 🍁Dry Drilling Design: while dry drilling,wax lubricant inside diamond core drill bit could cool the cutting surface; Water can be used as additional cooling for long-time drilling
• 🍁6pc - 3/16” (5mm) Green Dry diamond drill bits with hex shank. Diameter 3/16” total length 65mm
• 🍁1/4 inch Hex Shank -- Quick change hex shank provides better chuck grip and fits different styles of drills. Application -- Diamond tip drill bits designed for porcelain, ceramic, granite, marble, masonry, concrete, various types of tile and stone.
• 🍁Self Cooling -- Diamond tipped drill bit are integrated with wax. The wax melts while drilling absorbing and dissipating heat allowing for Dry drilling (water may be added for longer life and harder stones).
• 🍁Easy to Carry and Use: This Diamond Drill Bits set comes with a storage bottle for convenient use and store. tall angle grinder drill chuck