Feature

4-Edge Cross Drill Bit Set 7 sizes professional multifunctional drill bit set is complete size to meet your different needs, fast drilling speed, u-shaped chip removal groove, effectively prevent chip accumulation stagnation, improve operation, meet your different needs and improve work efficiency.
Precise Drilling Masonry drill bits set carbide tip make of sharp quadrilateral design, out damaging the material. Compared with ordinary drill bits, the four-edged cross drill bit has more concentrated force points and more even force, which can drill faster and more accurately without damaging the material.
Wear-Resistant and Durable Multifunctional cross alloy ceramic drill bits set made of high hardness steel, strong, rust-proof, wear-resistant and durable. Ideal for drilling fastner holes for glass cutting, bathroom and shower installs, drilling and fastening mirrors, setting concrete screws in tile and etc.
Portable Concrete Tools The multi-function hex shank cross alloy tip concrete drill bit set easy to drill porcelain tile, marble,drilling concrete,metal,bricks, ceramic, wood, diamond,glass, hardened stainless steel etc.If you drilling high hardness material please cool with water or cutting oil and control speed.
Compatibilit Carbide masonry concrete drill bit set make of universal hexagon shank(6.35mm), suitable for most electric drills, hand drills, lithium drills, etc.

Package includes

1PCS 3/4/5/6/8/10/12mm