• High quality multi-purpose drill bit set made of diamond that prevents bit cracking and provides a longer life,sturdy and durable.
• Can easily penetrate various material, like ceramic tile, glass, hard plastic,cement concrete, mirror travertine, brick wall, wood, and can reduce breakout.
• Material: Diamond
• Provide smooth, accurate drilling hole.
• 4 Size for choose, diameter: approx. 6mm/8mm/10mm/12mm, and the length: approx. 65mm/2.56inch

1pc diamond drill bit(3 Pack)