*100% brand new and high quality.
*Premium Material: 45 steel and alloy cutter head that prevents bit cracking; drill bit set made of hard and durable alloy, provides longer life.
*Unique Design: U type slot design with fast drilling dust remove, antiskid triangle handle allows the drill bit to be held tightly and stable in a power drill.
*Wide Usage: Spear pointed design strong tungsten carbide tip can easily penetrate various materials like tile, concrete, brick, glass, plastic, and wood, etc, and reduces breakout.
Tip: When drilling hard material such as glass, porcelain floor tile, marble, granite, etc, please use water for lubrication.