Product: Twist Drill Bit (10piece set) Why you need this set Precise 3.5 mm (0.14') cutting diameter for repeatable, accurate holes. speed steel (HSS) construction provides durable cutting edges and consistent performance across common materials. 52 mm (2') flute length and 72 mm (2.83') overall length combine deeper reach with effective chip evacuation for cleaner holes and fewer clogs. Sold as a 10piece set so you have spares on hand and replacement bits when they wear. Key benefits Reliable performance: HSS material resists wear and keeps a sharp cutting edge for longer than basic carbon steel bits. Cleaner drilling: Long flutes remove chips efficiently, reducing heat buildup and improving hole quality. Versatile fit: Standard twist drill geometry works in handheld drills and drill presses that accept 3.5 mm bits. Readytouse pack: Ten identical bits provide consistency across projects and reduce downtime for bit changes. Specifications Diameter: 3.5 mm (0.14') Flute length: 52 mm (2') Total length: 72 mm (2.83') Material: speed steel (HSS) Color: Silver tone Package content: 10 pcs x Twist Drill Bit Weight (set): 35 g Typical applications Metal fabrication: Drilling holes in thin sheet metal, brackets, and small metal parts (use cutting fluid for life). Woodworking and cabinetry: Pilot holes for screws, dowel holes, and light joinery tasks. DIY and maintenance: General household repairs, hobby projects, and component assembly where a 3.5 mm hole is required. Usage notes Use appropriate speed and feed for the material being drilled; lower speeds and cutting fluid recommended for harder metals. Secure the workpiece and use a pilot or center punch on metal to prevent bit wandering. Inspect bits before use and when tips show significant wear to maintain hole quality. What's included 10 x Twist Drill Bit, 3.5 mm (0.14'), HSS, silver tone This 10piece HSS twist drill bit set offers accurate 3.5 mm holes, reliable chip removal with a 52 mm flute, and a compact 72 mm overall length suitable for a wide range of drilling tasks.