{"product_id":"hss-countersink-drill-bit-set-hex-shank-5-flute-90-degree","title":"HSS Countersink Drill Bit Set – 1\/4\" Hex Shank 5 Flute 90°","description":"\n\u003ch2\u003eHSS Countersink Drill Bit Set – 1\/4\" Hex Shank, 5 Flute, 90° Chamfering\u003c\/h2\u003e\n\u003cp\u003eTake your woodworking and metalworking projects to the next level with this \u003cstrong\u003eHSS Countersink Drill Bit Set\u003c\/strong\u003e. Featuring a universal \u003cstrong\u003e1\/4\" (6.35mm) hex shank\u003c\/strong\u003e for quick-change compatibility, a \u003cstrong\u003e90° chamfering angle\u003c\/strong\u003e, and a robust \u003cstrong\u003e5-flute design\u003c\/strong\u003e, this set delivers precise, clean countersinks every time — on wood, plywood, acrylic, PVC, and more.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium HSS Construction:\u003c\/strong\u003e Made from high-speed steel with high-frequency quenching heat treatment for exceptional hardness and long-lasting toughness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTitanium Coating:\u003c\/strong\u003e A titanium coating guards against rust and wear, significantly extending the service life of each bit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e5-Flute Design:\u003c\/strong\u003e The five-flute, staggered-cutting geometry minimizes chatter and vibration, producing smooth, accurate countersinks with less effort.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e90° Chamfering Angle:\u003c\/strong\u003e Ideal for screw head seating, reaming, chamfering, and hole opening — the sharp 90° point ensures precise, consistent results.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1\/4\" Quick-Change Hex Shank:\u003c\/strong\u003e Compatible with most standard power drills and drill presses for fast, tool-free bit changes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Identification:\u003c\/strong\u003e Numbered markings on each bit let you quickly select the correct size, saving time on the job.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Suitable for wood, plywood, acrylic, PVC board, and similar materials — a must-have for carpenters, DIY enthusiasts, and professionals alike.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Size:\u003c\/strong\u003e 1\/4\" (6.35mm) Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlutes:\u003c\/strong\u003e 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAngle:\u003c\/strong\u003e 90°\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Speed Steel (HSS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating:\u003c\/strong\u003e Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Countersink \/ Chamfer Drill Bit Set\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Countersink Drill Bit Set (multiple sizes)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Please allow 1–3mm measuring deviation due to manual measurement. Actual color may vary slightly from images due to monitor and lighting differences.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/leather-hole-punch-tool-diy-stitching-punch-4-5-6mm\"\u003eLeather Hole Punch Tool | DIY Stitching Punch 4\/5\/6mm\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/uv-shaped-leather-groover-skiving-tool-kit-4-piece-diy\"\u003eU \u0026amp; V Leather Groover Skiving Tool Kit – 4-Piece Stainless Set\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-ceramic-trimming-tool-curved-skip-knife\"\u003eStainless Steel Ceramic Trimming Tool – Curved Skip Knife\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What materials can this HSS countersink drill bit set be used on?\u003c\/h4\u003e\n\u003cp\u003eA: This 5-flute HSS countersink drill bit set is designed for use on wood, plywood, acrylic, and PVC board. Its titanium-coated, high-speed steel construction makes it a versatile tool for both woodworking and general DIY applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the 1\/4\" hex shank compatible with standard drills?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The 1\/4\" (6.35mm) hex shank is a universal quick-change format compatible with most standard power drills, cordless drills, and drill presses, making it easy to swap bits without additional tools.\u003c\/p\u003e\n\u003ch4\u003eQ: How does the 5-flute design improve performance?\u003c\/h4\u003e\n\u003cp\u003eA: The 5-flute staggered-cutting design distributes cutting forces more evenly than single- or double-flute bits, reducing chatter and vibration during operation and resulting in cleaner, more precise countersink holes.\u003c\/p\u003e\n\u003ch4\u003eQ: What angle does the countersink drill bit cut at?\u003c\/h4\u003e\n\u003cp\u003eA: These countersink bits cut at a 90° angle, which is the most common standard for flathead and countersunk screws in woodworking and carpentry projects.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What materials can this HSS countersink drill bit set be used on?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 5-flute HSS countersink drill bit set is designed for use on wood, plywood, acrylic, and PVC board. Its titanium-coated, high-speed steel construction makes it a versatile tool for both woodworking and general DIY applications.\"}}, {\"@type\": \"Question\", \"name\": \"Is the 1\/4\\\" hex shank compatible with standard drills?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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