Drill Bit Ultra Masonry 1/4"

Specially Designed To Penetrate The Porous Material That Makes Up Concrete, Brick & Mortar. These Bits Have A Micro-gain Carbide Tip That Is Designed To Chip & Grind Out The Hole. Negative Carbide Tip For Rotary & Percussion Drilling. Wide Spiral Flutes Efficiently Remove Dust & Debris From The Cutting Area. Great For Drilling Brick, Stone, & Concrete, Ceramic, Damp & Dry Masonry Work & Glass.