10PCS Concrete Drill Bit 1/4 Inch Hex Shank Wet Dry Drilling Bits For

--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n--\n\nFeature: \n 1. [Versatile Set] This set includes 10 hex shank drill bits in various sizes (3 to 16mm), catering to different drilling needs and applications.\n2. [Enhanced Chip Removal] The widened spiral chip removal slot design ensures smoothly and efficient chip removal, allowing for uninterrupted drilling without clogging.\n3. [High Efficiency] With its sharply and symmetrical edge design, this drill bit enables fast and precise drilling without deviation, minimizes vibrations and prevents the enlargement of the drilled hole.\n4. [Secure Grip] The hex shank slot design provides a secure grip, ensuring a firm hold during drilling and preventing slippage.\n5. [Wide Range of Applications] This drill bit set is suitable for dry drilling in wood, ceramic, wall tiles, concrete, PVC, plastic, aluminum alloy, plastic steel, can also be used for wet drilling in tiles, glass, porcelain tiles, and marble. \n\nSpecific-