Built for precision, power, and long-term performance, HPHOPE's upgraded masonry drill bit set is your all-in-one solution for household and light industrial drilling.
★Take your home improvement and professional drilling projects to the next level with the HPHOPE 10-piece 5/16-inch masonry drill bit set. Engineered with advanced DU3X ultra-hard carbide tips and a titanium-coated 45# carbon steel body, these concrete drill bits deliver exceptional durability, wear resistance, and long-lasting sharpness.
★Designed for dry, wet, or water-cooled drilling, the enhanced four-flute chip ejection system increases heat dissipation, reduces clogging, and ensures smooth, efficient drilling without the need for water in most applications.
★Perfect for tackling tile, brick, concrete, granite, ceramic, marble, wood, plastic, and even glass—this is a true multi-material drill bit set that fits almost all common drills including cordless electric drills, hand drills, and bench drills.
★The reinforced 1/4" hex shank features a unique double R-groove anti-slip design that ensures a secure fit and minimizes wobble when used with quick-change chucks or standard drill systems. This provides enhanced control and safety during use.

★ Usage Tips for Best Results:
① Before drilling: Choose the correct diameter bit, and prepare a water container for cooling.
② Positioning: Align the bit at a 90° angle to the surface, lightly press the drill to create a guide hole.
③ Drilling: Once the hole starts, increase pressure gradually. Slight clockwise rotation and rocking can help penetrate tiles faster and prolong bit life.
④ Cooling: After every hole, dip the bit in water for 3–5 seconds to prevent overheating.
⑤ Drilling walls: For deeper holes, withdraw every 1–2 inches to help with dust removal. Avoid forcing the bit if it stalls in reinforced concrete—switch to a hammer drill if needed.