About This FAST & DURABLE - Crafted with a premium NF10X tungsten steel carbide tip, ensuring long-lasting durability. The sharpened side edges enhance carbide contact for quicker drilling. MEETS ALL YOUR NEEDS - Includes 10pcs of 1/4" masonry drill bits, suitable for both home DIY and commercial needs. SHOCK-RESISTANT DESIGN - Provides superior stability, ensuring precise and smooth drilling, ideal for hammer drilling mode. VERSATILE USAGE - This concrete drill bit set is perfect for drilling into concrete, brick, glass, ceramic, tile, cement, stainless steel plate (thickness>2mm). LONG-LASTING & EFFICIENT - Our concrete drill bits are engineered for both durability and efficiency, allowing faster drilling and saving time and effort in construction or renovation projects. Overview Material : Tungsten Steel Carbide Shank Type : Hex Cutting Angle String : 135 Degrees Brand : WildBossy Item dimensions L x W x H : 6.7 x 0.7 x 3 inches