BGTEC Diamond Drill Core Bit 8PCS/Set 6-35mm Round Shank for Ceramic Tile Granite Marble Concrete Vaccum Brazed Hole Saw

Item: BGTEC Vaccum Brazed Diamond Drill Bit Kit Round Shank for Granite Marble Brick Concrete 

Quantity:  1Kit/8pcs

Specification: 

Dia 6/8/10/12mm, diamond height 8mm, total length 65mm, grit: #50/60, round shank;

Dia 20/25/32/35mm, diamond height 10mm, working length 30mm, total length 65mm, grit: #40/45, round shank;

Application:  For drilling granite & marble, brick, concrete, porcelain tile, ceramic tile

Feature: 

1. Internal wax cooling: Plug cooling wax, top spiral groove, cooling lubrication(6-12mm);
2. U-slots design: Four U-slots in the top of the drill head to drain the heat(20-35mm);

3. Advanced brazing technology: Longer life span and less susceptible to chipping;

4. Portable design: Easy to carry in a handle aluminium case paksge.

Note:

1.Dry or wet use, suitable for Electric hand drill or Bench drill.

2.Recommended RPM: 2000-5000. The faster the better, the slower the shorter the life span.
3.Do not use impact or hammer mode.