{"product_id":"adjustable-countersink-drill-bit-carbide-woodworking-reamer-1","title":"Adjustable Countersink Drill Bit – Carbide Woodworking Reamer","description":"\n\u003ch2\u003eAdjustable Countersink Drill Bit for Precision Woodworking\u003c\/h2\u003e\n\u003cp\u003eAchieve perfectly flush, hidden screw holes every time with this professional-grade adjustable countersink drill bit. Engineered for both seasoned woodworkers and DIY enthusiasts, this countersunk reamer delivers consistent, clean results on a wide variety of wood materials — from pine and solid hardwood to MDF and particleboard.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Depth Control (2.5mm–10.5mm):\u003c\/strong\u003e Dial in the exact countersink depth for consistent, professional screw seating on every project — no guesswork, no rework.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium YG8 Carbide Cutting Head:\u003c\/strong\u003e The knife head is crafted from YG8 alloy carbide steel paired with a 45# steel drill body, delivering exceptional hardness, wear resistance, and long-lasting sharpness.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecure Hex-Lock Design:\u003c\/strong\u003e A hex locking screw holds the bit firmly in place during operation, while the round shank chamfers allow fast, easy insertion into any standard drill or driver chuck.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorrosion-Resistant Construction:\u003c\/strong\u003e Built to handle the demands of construction sites and everyday home workshops without degrading over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Size Options:\u003c\/strong\u003e Available in multiple sizes — 8×2.8mm, 8×3.0mm, 8×3.2mm, 8×3.5mm, 4.0×8mm, 2.8×10mm, 3.0×10mm, 3.2×10mm, 3.5×10mm, and 4.0×10mm — to match different screw types and project needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFurniture making \u0026amp; wood joinery\u003c\/li\u003e\n  \u003cli\u003eHidden screw installation in cabinetry\u003c\/li\u003e\n  \u003cli\u003eDIY woodcraft and home improvement projects\u003c\/li\u003e\n  \u003cli\u003eConstruction site carpentry\u003c\/li\u003e\n  \u003cli\u003eCabinet processing and panel assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCutting Head Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYG8 Alloy Carbide\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrill Body Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45# Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustable Core Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5mm – 10.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAvailable Sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8×2.8mm, 8×3.0mm, 8×3.2mm, 8×3.5mm, 4.0×8mm, 2.8×10mm, 3.0×10mm, 3.2×10mm, 3.5×10mm, 4.0×10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackage Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1× Adjustable Countersink Drill Bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-self-tapping-screws-m2-2-m4-8-phillips-wood-hinge\"\u003e10PCS Stainless Steel Self-Tapping Screws M2.2–M4.8 Phillips\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-20mm-diamond-flat-grinding-wheel-dry-and-wet-use-heavy-duty-concrete-grinder-wheel-blue-vacuum-brazed\"\u003e10\/20mm Diamond Flat Grinding Wheel – Heavy Duty Concrete Grinder\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1\"\u003e10pcs Durable Gold Blade Nut – Universal Trimmer Replacement Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to monitor\/display variations, colors may appear slightly different from the actual product. Please allow 1–3mm tolerance due to manual measurement.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What wood types is this adjustable countersink drill bit compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This countersink drill bit works excellently on pine, solid hardwood, MDF, and particleboard, making it suitable for a wide range of woodworking and carpentry applications including furniture making, cabinet assembly, and DIY home projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I adjust the countersink depth on this drill bit?\u003c\/h4\u003e\n\u003cp\u003eA: The bit features a hex locking screw mechanism. Simply loosen the hex screw, slide the bit to your desired depth within the 2.5mm–10.5mm adjustable range, then re-tighten the screw to lock it in place before drilling.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Which drill chucks is this countersink reamer compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: Thanks to its round shank with chamfers, this countersink drill bit is compatible with most standard drill chucks and driver chucks commonly used in woodworking tools, ensuring versatile and secure setup.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What size countersink drill bit should I choose for my project?\u003c\/h4\u003e\n\u003cp\u003eA: Select the size based on your screw diameter and shank. For most standard wood screws, the 8×3.0mm or 8×3.2mm options are popular choices. For larger or smaller screws, refer to the available size chart: 8×2.8mm, 8×3.0mm, 8×3.2mm, 8×3.5mm, 4.0×8mm, 2.8×10mm, 3.0×10mm, 3.2×10mm, 3.5×10mm, and 4.0×10mm.\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 wood types is this adjustable countersink drill bit compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This countersink drill bit works excellently on pine, solid hardwood, MDF, and particleboard, making it suitable for a wide range of woodworking and carpentry applications including furniture making, cabinet assembly, and DIY home projects.\"}}, {\"@type\": \"Question\", \"name\": \"How do I adjust the countersink depth on this drill bit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The bit features a hex locking screw mechanism. Simply loosen the hex screw, slide the bit to your desired depth within the 2.5mm–10.5mm adjustable range, then re-tighten the screw to lock it in place before drilling.\"}}, {\"@type\": \"Question\", \"name\": \"Which drill chucks is this countersink reamer compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Thanks to its round shank with chamfers, this countersink drill bit is compatible with most standard drill chucks and driver chucks commonly used in woodworking tools, ensuring versatile and secure setup.\"}}, {\"@type\": \"Question\", \"name\": \"What size countersink drill bit should I choose for my project?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Select the size based on your screw diameter and shank. For most standard wood screws, the 8×3.0mm or 8×3.2mm options are popular choices. For larger or smaller screws, refer to the available size chart: 8×2.8mm, 8×3.0mm, 8×3.2mm, 8×3.5mm, 4.0×8mm, 2.8×10mm, 3.0×10mm, 3.2×10mm, 3.5×10mm, and 4.0×10mm.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Adjustable Countersink Drill Bit – Carbide Woodworking Reamer\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/products\/adjustable-countersink-drill-bit-carbide-woodworking-reamer\"}]}\u003c\/script\u003e","brand":"Richie's","offers":[{"title":"2point8X8MM","offer_id":57574155387046,"sku":"1005012818571343-2point8X8MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"3x8MM","offer_id":57574155419814,"sku":"1005012818571343-3x8MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"3point2X8MM","offer_id":57574155452582,"sku":"1005012818571343-3point2X8MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"3point5X8MM","offer_id":57574155485350,"sku":"1005012818571343-3point5X8MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"4x8MM","offer_id":57574155518118,"sku":"1005012818571343-4x8MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"2point8X10MM","offer_id":57574155550886,"sku":"1005012818571343-2point8X10MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"3x10MM","offer_id":57574155583654,"sku":"1005012818571343-3x10MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"3point2X10MM","offer_id":57574155616422,"sku":"1005012818571343-3point2X10MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"3point5X10MM","offer_id":57574155649190,"sku":"1005012818571343-3point5X10MM","price":22.82,"currency_code":"USD","in_stock":true},{"title":"4x10MM","offer_id":57574155681958,"sku":"1005012818571343-4x10MM","price":22.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/2182\/7494\/files\/S36b495566a794bf7a91f12aa595a5839l.webp?v=1791240505","url":"https:\/\/richiesmart.com\/products\/adjustable-countersink-drill-bit-carbide-woodworking-reamer-1","provider":"Richie's","version":"1.0","type":"link"}