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【Size】Pack of 10PCS 3/16"*2，1/4"*4，5/16"*2，3/8"，1/2" (5*2+6*4+8*2+10+12MM) Carbide Tipped Masonry Drill Bits, Shank diameter: 1/4"(6.3MM). Matching with a quick coupling shank drilling rod
【Precision Drilling】Crisscross Serrated Tip Design – Eliminates skidding and deviation common with traditional drill bits. Ensures exact hole positioning, especially on smooth surfaces like tiles & glass—no more frustrating re-drilling
【Universal Drilling】One Bit for All Jobs! Easily drills through wood, plastic, brick, masonry, tiles, and even glass/marble! Tungsten carbide tip + hardened steel body delivers powerful penetration, even in concrete (avoid rebar). Use with coolant for longer bit life
【High-Efficiency Chip Removal】Deepened Spiral Flute Design – 50% faster drilling with smooth debris ejection. Prevents clogging for cleaner, uninterrupted deep/hole drilling—saves time & effort
【Fits Most Drills】6.3mm quick-fit hex shank With a quick-change connecting lever, it can help to install and remove the drill bit quickly – Compatible with all standard drills & bench drills. Extended bit length for hard-to-reach spaces. Best used with 2000-5000 RPM drills (24V+ cordless recommended for tough materials)
