Larouoba 10pc Black Special Crooked Head Eccentric Drill Bit Set, Porcelain Tile Drill Bit Concrete Drill Bit for Glass,Brick,Plastic,Cement,Wood,Ceramic,Metal,Marble (3/16” to 1/2”).

【Professional Drill Bits For a Wide Range Of Uses】 glass, ceramic tile, marble, metal, ceramic, stone wood, plastic, red brick wall, cement, PVC pipe, foam brick (can be drilled directly without adding water) can also be drilled with water according to the actual situation to prolong the life of the drill bit. 【Good Performance】Quick-fit hex shank design for stable clamping, smooth and easy drilling, fast and smooth cutting, be more efficient and durable. Compatible with most popular electric drills, angle grinders and bench drills, do not use impact or hammer mode. Generally hand drill in 2000-5000RPM, the faster the better, the slower then the shorter life span. 【High Quality Material-Tungsten Carbide】The tip of the drill bit is welded with high-grade industrial-grade tungsten carbide, which has good abrasion resistance and can easily penetrate various materials. The drill body is made of selected high-strength steel matrix, which can effectively assist drilling and extend the service life. 【Slant Head Eccentric Design】Ensures precise positioning, fast and efficient drilling, reduced wear and tear, and longer service life. Spiral grooves in the head for easy chip removal. It can be easily used for accurate positioning drilling and keeping the holes smooth. ›See more product details ›See more product details