{"product_id":"4-flute-countersink-drill-bit-set-adjustable-depth-hex-shank-woodworking","title":"4 Flute Countersink Drill Bit – Adjustable Depth 1\/4\" Hex Shank","description":"\u003ch2\u003e4 Flute Countersink Drill Bit Set with Adjustable Depth \u0026amp; Bearing – 1\/4\" Hex Shank\u003c\/h2\u003e\n\u003cp\u003eUpgrade your woodworking toolkit with this precision-engineered \u003cstrong\u003e4 Flute Countersink Drill Bit\u003c\/strong\u003e. Designed for both hobbyists and professionals, this bit delivers clean, accurate counterbores in hardwoods and softwoods alike. The four-edged design and premium 6542 high-speed steel construction ensure long-lasting performance, heat resistance, and rust protection job after job.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFour-Edged Design:\u003c\/strong\u003e Long-lasting four-flute construction ensures precise and efficient counterboring in hardwoods for a clean, professional finish.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Depth Control:\u003c\/strong\u003e Built-in limit ring with an etched scale and hex set screw lets you dial in your exact drilling depth — preventing over-drilling and delivering perfectly consistent sinkholes every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium 6542 Steel:\u003c\/strong\u003e High-speed steel construction provides superior longevity, heat resistance, and corrosion protection compared to standard drill bits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Size Options:\u003c\/strong\u003e Available in 2.8mm, 3.2mm, 3.5mm, and 4.0mm diameters to suit a wide range of woodworking applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1\/4\" Hex Shank:\u003c\/strong\u003e Universal 1\/4\" hex shank fits most standard power drills and drill drivers for quick, tool-free bit changes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing-Guided Operation:\u003c\/strong\u003e Integrated bearing ensures smooth, stable rotation for accurate countersinking with minimal wobble.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6542 High-Speed Steel \/ Aluminum Alloy body\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColors Available:\u003c\/strong\u003e Red, Gold, Blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 3.7 × 3.7 × 14 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type:\u003c\/strong\u003e 1\/4\" Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Diameters:\u003c\/strong\u003e 2.8mm, 3.2mm, 3.5mm, 4.0mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Countersink Drill Bit (size as selected)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMonitor brightness and lighting conditions may cause slight color variation from images shown.\u003c\/li\u003e\n  \u003cli\u003ePlease allow minor measurement tolerances (±0.5mm) for listed dimensions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/18-pc-basswood-carving-blocks-whittling-wood-kit\"\u003e18 Pc Basswood Carving Blocks – Whittling Wood Kit for Carvers\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/garden-pruner-shears-secateurs-bonsai-fruit-trees\"\u003eGarden Pruner Shears – Secateurs for Bonsai \u0026amp; Fruit Trees\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 shank size does this countersink drill bit use?\u003c\/h4\u003e\n\u003cp\u003eA: This countersink drill bit features a universal 1\/4\" hex shank, making it compatible with the vast majority of standard power drills, cordless drills, and drill drivers without needing any adapters.\u003c\/p\u003e\n\u003ch4\u003eQ: Can the drilling depth be adjusted on this countersink bit?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The bit includes a built-in adjustable limit ring with an etched depth scale and a hex set screw. Simply loosen the screw, slide the ring to your desired depth marking, and re-tighten — ensuring perfectly uniform countersink depth across every hole.\u003c\/p\u003e\n\u003ch4\u003eQ: What materials can this drill bit be used on?\u003c\/h4\u003e\n\u003cp\u003eA: This 4 flute countersink bit is primarily designed for woodworking applications including hardwoods, softwoods, plywood, and MDF. The premium 6542 high-speed steel construction provides durability for demanding woodworking projects.\u003c\/p\u003e\n\u003ch4\u003eQ: Which sizes are available for this countersink drill bit set?\u003c\/h4\u003e\n\u003cp\u003eA: The bit is available in four diameter options: 2.8mm, 3.2mm, 3.5mm, and 4.0mm, allowing you to match the right size to your screw and wood type for a clean, flush finish.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What shank size does this countersink drill bit use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This countersink drill bit features a universal 1\/4\\\" hex shank, making it compatible with the vast majority of standard power drills, cordless drills, and drill drivers without needing any adapters.\"}}, {\"@type\": \"Question\", \"name\": \"Can the drilling depth be adjusted on this countersink bit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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