{"product_id":"aluminum-90-degree-corner-clamp-kit-woodworking-positioning-squares","title":"Aluminum 90° Corner Clamp Kit with Storage Case – 2, 4 \u0026 8-Piece Sets","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eAluminum 90° Corner Clamp Kit — Precise Right-Angle Assembly for Every Woodworking Project\u003c\/h2\u003e\n\u003cp\u003eStruggling to hold boards at a perfect 90° while the glue dries or the screws go in? Whether you're a weekend DIYer building a bookshelf or a seasoned woodworker assembling cabinet carcasses, misaligned corners waste time and materials. This aluminum 90° corner clamp kit gives you a reliable, hands-free way to lock workpieces at a true right angle every time.\u003c\/p\u003e\n\u003cp\u003eEach kit includes 5.5-inch (140 mm) aluminum alloy positioning squares paired with fixed blocks, L-shaped threaded rods, washers, and knobs — everything you need to clamp and hold corners securely. Available in 2-piece, 4-piece, and 8-piece configurations to match your project scale, all stored in an included carrying case.\u003c\/p\u003e\n\u003cp\u003eUse it for gluing up picture frames, assembling drawer boxes, building cabinet frames, or any panel-to-panel joint where a square corner is non-negotiable. The scale markings on each square make repeat setups fast and consistent — ideal for batch production or multi-piece furniture builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e✅\u003c\/span\u003e\nCompatible with wood boards, MDF panels, plywood, and other flat-edged materials typically used in woodworking, cabinetry, and DIY furniture assembly.\n\u003c\/div\u003e\n\n\u003cdiv\u003e\n\u003ch2\u003e✅ Key Features of These Aluminum 90° Corner Clamps\u003c\/h2\u003e\n\u003cul class=\"hdiy-features\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eTrue 90° Positioning:\u003c\/strong\u003e Precision-machined aluminum squares align boards and panels at an exact right angle — no guesswork, no drift while you fasten or glue.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eComplete Clamping Hardware Included:\u003c\/strong\u003e Each positioning square comes with fixed blocks, L-shaped threaded rods, washers, and hand-tighten knobs — ready to use out of the box.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏗️\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eAluminum Alloy Construction:\u003c\/strong\u003e Rigid, lightweight, and corrosion-resistant — the squares and fixed blocks hold their shape through repeated use without warping or bending.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eAdjustable Clamping Pressure:\u003c\/strong\u003e Gradually tighten each knob to dial in the right pressure for your material — works with thin panels and thick lumber alike.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eEasy-to-Read Scale Markings:\u003c\/strong\u003e Engraved measurement markings along each square speed up layout and make repeat positioning consistent across multiple pieces.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧰\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOrganized Storage Case Included:\u003c\/strong\u003e All components store neatly in the included carrying case — no loose hardware rattling around your toolbox between projects.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cimg alt=\"Aluminum 90° corner clamp kit components including positioning squares, fixed blocks, threaded rods, and storage case\" src=\"https:\/\/p16-oec-general-useast8.ttcdn-us.com\/tos-useast8-i-rt0ujvrtvp-tx2\/6da504fb62184a81b8cdc92cc6b0b599~tplv-fhlh96nyum-origin-jpeg.jpeg?dr=12178\u0026amp;t=555f072d\u0026amp;ps=933b5bde\u0026amp;shp=a3510d86\u0026amp;shcp=6ce186a1\u0026amp;idc=useast5\u0026amp;from=2739998086\"\u003e\u003c\/p\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📦 What's in the Box\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003e2-Piece Set\u003c\/th\u003e\n\u003cth\u003e4-Piece Set\u003c\/th\u003e\n\u003cth\u003e8-Piece Set\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5.5\" Right-Angle Positioning Squares\u003c\/td\u003e\n\u003ctd\u003e2×\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003ctd\u003e8×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFixed Blocks\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003ctd\u003e8×\u003c\/td\u003e\n\u003ctd\u003e16×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Tighten Knobs\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003ctd\u003e8×\u003c\/td\u003e\n\u003ctd\u003e16×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWashers\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003ctd\u003e8×\u003c\/td\u003e\n\u003ctd\u003e16×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL-Shaped Threaded Rods\u003c\/td\u003e\n\u003ctd\u003e4×\u003c\/td\u003e\n\u003ctd\u003e8×\u003c\/td\u003e\n\u003ctd\u003e16×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Case\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003ctd\u003e1×\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-usecases\"\u003e\n\u003ch2\u003e🎯 Who Is This For?\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cspan\u003e🪵\u003c\/span\u003e\n\u003cstrong\u003eWoodworkers Building Furniture\u003c\/strong\u003e\n\u003cp\u003eAssemble cabinet carcasses, drawer boxes, and shelving units with confidence — the clamps hold every corner square while you drive screws or wait for glue to cure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cspan\u003e🖼️\u003c\/span\u003e\n\u003cstrong\u003ePicture Frame \u0026amp; Box Makers\u003c\/strong\u003e\n\u003cp\u003eGet clean, gap-free mitered and butt-jointed corners on frames, shadow boxes, and decorative crates without a dedicated frame press.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cspan\u003e🔨\u003c\/span\u003e\n\u003cstrong\u003eDIY Home Improvement Enthusiasts\u003c\/strong\u003e\n\u003cp\u003eBuild custom shelves, repair furniture, or tackle weekend projects with a professional-grade clamping setup that doesn't require a full workshop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-usecase-item\"\u003e\n\u003cspan\u003e🏭\u003c\/span\u003e\n\u003cstrong\u003eSmall-Batch Woodworking Shops\u003c\/strong\u003e\n\u003cp\u003eThe 8-piece set lets you clamp multiple corners simultaneously — ideal for production runs of boxes, trays, or cabinet doors where consistency matters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003ePositioning Square Size\u003c\/th\u003e\n\u003ctd\u003e5.5 inches (approx. 140 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eAluminum alloy (squares and fixed blocks)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorner Angle\u003c\/th\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClamping Mechanism\u003c\/th\u003e\n\u003ctd\u003eL-shaped threaded rod with hand-tighten knob and washer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eScale Markings\u003c\/th\u003e\n\u003ctd\u003eYes — engraved on positioning squares\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Set Sizes\u003c\/th\u003e\n\u003ctd\u003e2-Piece, 4-Piece, 8-Piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003eIncluded carrying case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatible Materials\u003c\/th\u003e\n\u003ctd\u003eWood, MDF, plywood, and flat-edged panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cimg alt=\"Corner clamp kit in use holding wooden boards at 90 degrees during woodworking assembly\" src=\"https:\/\/p16-oec-general-useast8.ttcdn-us.com\/tos-useast8-i-rt0ujvrtvp-tx2\/920ab0f462d44534a0c28204c7043b33~tplv-fhlh96nyum-origin-jpeg.jpeg?dr=12178\u0026amp;t=555f072d\u0026amp;ps=933b5bde\u0026amp;shp=a3510d86\u0026amp;shcp=6ce186a1\u0026amp;idc=useast5\u0026amp;from=2739998086\"\u003e\u003c\/p\u003e\n\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 2-piece, 4-piece, and 8-piece sets?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe number refers to how many 5.5-inch positioning squares are included. Each square comes with its own set of clamping hardware (fixed block, threaded rod, washer, and knob). More squares let you clamp more corners simultaneously — useful for assembling all four corners of a box or cabinet at once.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat materials can I use these corner clamps with?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThese clamps work best with wood, MDF, plywood, and other flat-edged panel materials. The workpiece edges should be straight and square before clamping for best results.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these clamps for both inside and outside corners?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The positioning squares can be placed against the inside or outside of a corner depending on your assembly method and workpiece dimensions.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow thick of a board can these clamps accommodate?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe L-shaped threaded rods provide a range of clamping depth. They are generally suited for boards and panels typically used in furniture and cabinet making — check the product images for dimensional reference or contact us to confirm compatibility with your specific material thickness.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need any tools to tighten the clamps?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eNo tools required. The knobs are designed to be hand-tightened. Tighten gradually and evenly across all clamps to avoid shifting the workpiece out of alignment.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the positioning squares accurate enough for fine woodworking?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eThe aluminum alloy squares are machined to a 90° angle and include engraved scale markings for consistent positioning. They are well-suited for furniture assembly, cabinetry, and general woodworking. For ultra-precision instrument-grade work, verify squareness with a reliable reference square before gluing.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use multiple sets together on a large project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eYes. The 8-piece set is designed for clamping all corners of a box or cabinet simultaneously. You can also combine multiple sets for larger assemblies or production runs.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I clean and maintain the clamps?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\u003cp\u003eWipe the aluminum squares and hardware with a dry or lightly damp cloth after use. Remove any glue residue before it fully cures. Store all components in the included case to prevent loss and keep threads clean.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your set size above, then add to cart.\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"2-Piece Set","offer_id":52567299981586,"sku":null,"price":39.0,"currency_code":"USD","in_stock":true},{"title":"4-Piece Set","offer_id":52567300014354,"sku":"HKWJ10002","price":53.0,"currency_code":"USD","in_stock":true},{"title":"8-Piece Set","offer_id":52567300047122,"sku":"HKWJ10003","price":69.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/ba722aa637294c13b4e43f5e47aeb82b_tplv-fhlh96nyum-crop-webp_2000_2000.webp?v=1785403878","url":"https:\/\/homediyer.com\/products\/aluminum-90-degree-corner-clamp-kit-woodworking-positioning-squares","provider":"HomeDIYer","version":"1.0","type":"link"}