13-Piece HSS Titanium-Coated Twist Drill Bit Set — 1/4" Hex Shank, Sizes 1.5–6.5 mm Why this set matters Reliable, general-purpose drilling for hobbyists and pros: the high-speed steel (HSS) construction with titanium coating improves wear resistance and reduces friction, extending bit life compared with uncoated bits. Fast, secure bit changes: the standard 1/4 inch hex shank fits common quick-change adapters, screwdriver-bit holders, and most cordless drill/driver chucks for convenient use. Versatile size range: the 13-piece set covers 1.5–6.5 mm sizes, giving you the right diameter for precision tasks and small fastener holes. Key features and benefits Material: HSS core for toughness and cutting performance; titanium coating for improved heat resistance and longer edge life. Shank: standard 1/4" hex shank for positive drive and reduced slipping in impact drivers and quick-change chucks. Bit type: twist drill design for clean, controlled drilling in a variety of materials. Performance: reduced heat build-up and smoother cutting action help maintain sharpness and improve hole quality. Compact kit: multiple sizes in one set to reduce bit changes and cover common drilling needs. Compatibility and use Fits drills, drivers, and quick-change chucks that accept a 1/4" hex shank. Suitable for drilling in wood, plastics, soft metals, and thin sheet materials when using appropriate speed and pressure. Practical applications Installing hardware and hinges: drill precise pilot holes for screws when hanging doors, cabinets, or trim. Electrical and electronics work: create accurate small-diameter holes in plastic enclosures and panels. Metal fabrication and repairs: drill pilot holes in soft metals and thin sheets during light fabrication, maintenance, or retrofit projects. Usage tips Use correct speed and steady pressure for the material being drilled. Back out the bit periodically when drilling deeper holes to clear chips. Use cooling or lower speed for metal to reduce heat and prolong bit life. Includes 13 twist drill bits (sizes covering 1.5 mm to 6.5 mm) 1/4" hex shank compatibility Built for everyday practicality: this compact HSS titanium-coated drill bit set provides durable cutting performance and fast compatibility with standard 1/4" hex tool holders, making it a dependable choice for general drilling tasks.