1.13 pieces/lot HSS High-Speed Steel Titanium-Coated Drill Bit Set — 1/4" Hex Shank, 1.5–6.5 mm Twist Drills Key benefits Durable cutting edge: High-speed steel (HSS) base with titanium coating improves wear resistance and extends bit life compared with uncoated HSS. Fast chip evacuation and clean holes: Spiral (twist) flute geometry clears chips efficiently for smoother, more accurate drilling. Secure, quick changes: 1/4" hex shank fits standard quick-change chucks and screwdrivers, preventing slip and speeding up bit swaps. Broad size coverage: 1.5–6.5 mm range covers common small-to-medium drilling tasks without needing multiple sets. Features and specifications Quantity: 1.13 pieces per lot Material: High-Speed Steel (HSS) with titanium coating Shank: 1/4" hexagonal shank for compatibility with impact drivers and quick-change adapters Cutting style: Spiral/twist drill design Size range: 1.5 mm through 6.5 mm Why you need this set Replace worn or broken bits with a single compact set that handles a range of hole sizes. Reduce downtime: titanium coating and HSS construction give longer life and more consistent cutting, so you drill more holes before replacing bits. Improve work quality: the combination of spiral flutes and precision ground tips delivers cleaner, more accurate holes. Practical applications Home repairs and furniture assembly: drill pilot holes or fastener clearances with consistent results. Electrical and electronics enclosures: make small, precise holes for cable entries and mounting hardware. General metalworking and fabrication: suitable for small-diameter holes in thin metal parts when using the correct drill speeds and clamping. Usage notes (concise) Use appropriate drill speed and light to moderate feed pressure for best life and finish. Secure workpiece and use coolant/lubricant when drilling metals to extend bit life. The 1/4" hex shank makes these bits compatible with most quick-change chucks and bit holders. What makes this set stand out The titanium coating on HSS provides a measurable improvement in wear resistance and reduced friction without changing the bit geometry. Hex shank design prioritizes fast, slip-free bit changes for cordless drivers and quick-change systems. A compact range of sizes (1.5–6.5 mm) covers common drilling needs in one affordable set.