Yanran Drill Bit Hole Opener Puncher for Tile Marble Glass Hex Shank [8mm] 2 Pieces

Compatible with electric drills, bench drills, and angle grinders (angle grinders require an adapter chuck)

For electric drills, use models with power ≥600W or cordless drills with voltage ≥48V

Ideal for household and professional use on ceramic and stone materials

Start drilling at a 45° angle to create a crescent-shaped positioning groove

Gradually straighten the drill to 90° while maintaining high speed and slight shaking motion to remove debris and improve drilling speed

Avoid adding water during drilling to prevent inconvenience and hazards

Drilling performance may vary depending on tile hardness, thickness, drilling technique, machine power, and speed

Data sourced from Chengzhou Laboratory; for reference only

Product dimensions may have slight variations due to manufacturing tolerances

Five drill bit sizes to choose from (6mm, 6.5mm, 8mm, 10mm, 12mm)

Suitable for drilling holes in ceramic tiles, porcelain tiles, ordinary glass, marble, granite, microcrystalline stone, quartz stone

Not recommended for metal, tempered glass, wood, plastic, automotive glass, or tempered glass furniture

Use appropriate drill models as recommended

Angle grinders require additional adapter for drill bit compatibility