Dry Diamond Drill Bits Set for Granite Ceramic Marble Tile Stone Glass Hard Material Hex Shank Masonry Hole Saw Drill Bit 5-16mm

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), 1/4 (6mm), 5/16 (8mm) , 3/8 (10mm),1/2 (12mm), 9/16 (14mm), 5/8 (16mm)

Lengths: 68mm-80mm

Bit Type: Vacuum Brazed Diamond Tips

Drill type: Both Dry and wet

Shank Type: 1/4” (6.35mm) Hex Shank

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 motion

Step 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

Recommended Masonry/Stone: Ceramic Tile, Porcelain Tile, Common Glass, Ceramic, Marble, Granite, Microlite, Quartz Stone

Not Recommended: Stalinite, Metal, Wood, Plastic

Packing included:

Dry Diamond Drill Bits

Note:

1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.