{"product_id":"square-hole-drill-bit-adapter-mortising-chisel-kit-cast-aluminum","title":"Square Hole Drill Bit Adapter \u0026 Mortising Chisel Kit – Cast Aluminum","description":"\n\u003ch2\u003eSquare Hole Drill Bit Adapter \u0026amp; Mortising Chisel Kit\u003c\/h2\u003e\n\u003cp\u003eTake your woodworking projects to the next level with this professional \u003cstrong\u003eSquare Hole Drill Bit Adapter\u003c\/strong\u003e and \u003cstrong\u003eMortising Chisel Kit\u003c\/strong\u003e. Whether you're crafting mortise-and-tenon joints, fitting furniture hardware, or working with MDF and pine, this precision-engineered kit delivers clean, accurate square holes every time. Made in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Woodworkers Love This Kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with Handheld Drills:\u003c\/strong\u003e The adapter is designed specifically for standard handheld electric drills — simply attach and start drilling perfect square holes without a dedicated bench machine.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCast Aluminum Construction:\u003c\/strong\u003e The fixed bracket is made from high-quality cast aluminum — wear-resistant, high-hardness, and built for long-lasting durability on the workbench.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick Install \u0026amp; Remove:\u003c\/strong\u003e Tool-free convenience — attach or detach the adapter in seconds for a fast, seamless workflow.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise \u0026amp; Smooth Drilling:\u003c\/strong\u003e The adapter holder keeps your drill bit perfectly aligned, ensuring accurate, clean square cuts in a single pass.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSix Drill Bit Sizes Included (Package 2):\u003c\/strong\u003e Covers 1\/4\" (6.4mm), 5\/16\" (8mm), 3\/8\" (9.5mm), 9\/16\" (14mm), 1\/2\" (12.7mm), and 5\/8\" (16mm) — a complete set for any joinery task.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets CE safety and quality standards for your peace of mind.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003ch4\u003ePackage 1 — Square Hole Drill Bit Adapter (Fixer)\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cast Aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 15 cm length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 53 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Cutting Depth:\u003c\/strong\u003e 10 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003ePackage 2 — Square Hole Drill Bits (6-Piece Set)\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High Speed Steel (HSS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Silver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSizes:\u003c\/strong\u003e 1\/4\" (6.4mm) | 5\/16\" (8mm) | 3\/8\" (9.5mm) | 9\/16\" (14mm) | 1\/2\" (12.7mm) | 5\/8\" (16mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Woods:\u003c\/strong\u003e MDF, particle board, channel wood, pine, basswood, and more\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePackage 1 (Adapter Kit):\u003c\/strong\u003e 1× Square Drill Holder | 2× Wrenches | 2× Plastic Washers\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePackage 2 (Square Drill Kit):\u003c\/strong\u003e 6× Square Hole Drill Bits\u003c\/p\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe adapter (Package 1) is suitable for handheld electric drills only — not compatible with bench drills or rechargeable cordless drills.\u003c\/li\u003e\n  \u003cli\u003eThe square drill bits (Package 2) require a mortising machine or drill press with the appropriate accessories — they cannot be used with handheld drills.\u003c\/li\u003e\n  \u003cli\u003eNot suitable for cutting metal, glass, plastic, concrete, or plasterboard.\u003c\/li\u003e\n  \u003cli\u003eSlight color variations between product images and the actual item may occur due to display settings. Minor dimension differences may result from manual measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\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 Metal Universal Trimmer Accessories\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\/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\u003c\/ul\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: Can I use the square hole drill bit adapter with any handheld electric drill?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — the Square Hole Drill Bit Adapter (Package 1) is designed to be compatible with standard handheld electric drills. It is NOT compatible with bench drills or rechargeable cordless drills. Always check your drill's chuck size before attaching the adapter.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What materials can I cut with the square hole drill bits?\u003c\/h4\u003e\n\u003cp\u003eA: The high-speed steel square hole drill bits (Package 2) are designed for wood-based materials including MDF, particle board, channel wood, pine, and basswood. They are not suitable for metal, glass, plastic, concrete, or plasterboard.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need any extra accessories to use the square drill bits on a drill press?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The square hole drill bits (Package 2) must be used in conjunction with a mortising machine. If you wish to use them on a drill press, you will need additional mounting accessories compatible with your press. The bits cannot be used with handheld drills.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How deep can the adapter drill in a single pass?\u003c\/h4\u003e\n\u003cp\u003eA: The Square Hole Drill Bit Adapter (Package 1) has a maximum cutting depth of 10 mm per pass, making it ideal for mortise joints and hardware fittings in standard woodworking applications.\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\": \"Can I use the square hole drill bit adapter with any handheld electric drill?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — the Square Hole Drill Bit Adapter (Package 1) is designed to be compatible with standard handheld electric drills. It is NOT compatible with bench drills or rechargeable cordless drills. 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