Shengda Ceramic Tile Drill Bit Hole Opener Dry Hammer Full Ceramic Glass Stone Marble Special Electric Drill Enlarging Bit 10mm

Diamond needle welding ensures clean, chip-free, smooth-edged holes

Anti-slip triangular handle design for better torque and control (some small sizes have round handles)

Built-in cooling wax inside the drill body for lubrication and cooling during dry drilling, eliminating the need for water

Spiral chip removal grooves on the cutting edge for efficient debris evacuation

Tested to drill over 30 holes on 9mm thick full porcelain tiles with an 8mm drill bit under dry conditions

Total length varies between 69mm and 80mm depending on size

Ideal for ceramic tile decoration and home renovation

Suitable for drilling holes in full porcelain, glazed tiles, polished tiles, antique tiles, microcrystalline tiles, and marble

Replaces traditional triangle drills, sintered hole openers, and electroplated hole openers

Test data is for reference only; actual performance depends on tile hardness, thickness, drilling skill, machine power, and speed