{"product_id":"freud-89-660-3-piece-undersized-plywood-router-bit-set-1-4-inch-shank-carbide-tipped-dado-groove-cutter-for-cabinet-making","title":"Freud 89-660 3 Piece Undersized Plywood Router Bit Set 1\/4 Inch Shank Carbide Tipped Dado Groove Cutter For Cabinet Making","description":"\u003cdiv class=\"product-description\" style=\"font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; color: #333; line-height: 1.6;\"\u003e\n\u003ch2 style=\"color: #003366; margin-bottom: 15px;\"\u003e\u003ca href=\"https:\/\/www.1toptools.com\/pages\/brand-freud\" title=\"Link to Freud Tools homepage\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/freud3.jpg?v=1772570772\" alt=\"Freud precisely the best logo Logout\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003ch2 style=\"color: #003366; margin-bottom: 15px;\"\u003eAchieve Perfect Joinery with the Freud 3-Piece Undersized Plywood Router Bit Set\u003c\/h2\u003e\n\u003cp\u003eEliminate the frustration of loose-fitting joints and sloppy dadoes with the Freud (Diablo) 89-660 Undersized Plywood Bit Set. Modern plywood panels often measure thinner than their nominal thickness—a \"3\/4 inch\" sheet is rarely a full 3\/4 inch. Standard router bits leave gaps that weaken joints and look unprofessional. This specialized 3-piece set is precision-engineered to match the \u003cem\u003eactual\u003c\/em\u003e thickness of today's 1\/4\", 1\/2\", and 3\/4\" plywood, ensuring snug, rattle-free grooves and dadoes every time. Whether you are building bookshelves, cabinets, or drawers, these bits provide the tight, glue-ready fit essential for high-quality craftsmanship.\u003c\/p\u003e\n\u003cp\u003eManufactured in Italy, these bits feature Freud's industry-leading TiCo™ Hi-Density Carbide, offering a sharper edge and superior longevity compared to standard bits. Each bit is finished with the signature Perma-SHIELD® coating, a non-stick formulation that reduces friction, heat buildup, and resin accumulation, preventing burning even in dense plywoods and composites. Compatible with all hand-held and table-mounted routers accepting a 1\/4-inch shank, this set comes organized in a durable wooden shadowbox case, keeping your essential joinery tools protected and ready for your next project.\u003c\/p\u003e\n\u003ch3 style=\"margin-top: 25px; border-bottom: 1px solid #ddd; padding-bottom: 5px; color: #003366;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"margin-bottom: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Sizing:\u003c\/strong\u003e Bits are slightly undersized (7\/32\", 15\/32\", 23\/32\") to match the true thickness of nominal plywood.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlawless Joinery:\u003c\/strong\u003e Creates perfectly fitted grooves and dadoes for strong, gap-free shelving and cabinet joints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Carbide:\u003c\/strong\u003e Features TiCo™ Hi-Density Carbide for maximum cutting life and a flawless finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerma-SHIELD® Coating:\u003c\/strong\u003e Protects against heat, rust, and pitch build-up for smoother operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Safe for use in hardwood, softwood, plywood, and composites on both hand-held and table routers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShear Angle Design:\u003c\/strong\u003e Engineered to slice through wood fibers cleanly, minimizing tear-out on delicate veneers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtective Storage:\u003c\/strong\u003e Includes a custom wooden shadowbox case for safe storage and easy identification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe width=\"968\" height=\"1095\" src=\"https:\/\/www.youtube.com\/embed\/Ww25qfwkAF0\" title=\"Freud, Precisely the Best\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch3 style=\"margin-top: 25px; border-bottom: 1px solid #ddd; padding-bottom: 5px; color: #003366;\"\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003e1 x 7\/32\" Diameter Straight Bit (Fits 1\/4\" Plywood)\u003cbr\u003e1 x 15\/32\" Diameter Straight Bit (Fits 1\/2\" Plywood)\u003cbr\u003e1 x 23\/32\" Diameter Straight Bit (Fits 3\/4\" Plywood)\u003cbr\u003e1 x Wooden Storage Case\u003c\/p\u003e\n\u003ch3 style=\"margin-top: 25px; border-bottom: 1px solid #ddd; padding-bottom: 5px; color: #003366;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable height=\"485\" style=\"width: 47.3214%; border-collapse: collapse; margin-bottom: 20px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eManufacturer Model\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003e89-660\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eShank Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003e1\/4 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eBit 1 Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003e7\/32 in. (for 1\/4\" ply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eBit 2 Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003e15\/32 in. (for 1\/2\" ply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eBit 3 Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003e23\/32 in. (for 3\/4\" ply)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eBit Material\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003eTiCo™ Hi-Density Carbide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eNumber of Pieces\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eCoating\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003ePerma-SHIELD® (Red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003eItaly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003ePlywood Dadoes \u0026amp; Grooves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); font-weight: bold; width: 44.0072%;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid rgb(221, 221, 221); width: 55.9928%;\"\u003eLifetime Manufacturer's\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"background-color: #e6f0fa; padding: 15px; border-left: 5px solid #003366; font-style: italic;\"\u003e\u003cstrong\u003ePro-Tip:\u003c\/strong\u003e Plywood thickness can vary slightly between manufacturers and batches. Before committing to your final project, always make a test cut in a piece of scrap material from the same sheet. Test the fit of your shelf or panel into this groove; it should be snug enough to hold itself up but not so tight that it requires heavy pounding to seat, which could starve the glue joint.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Freud","offers":[{"title":"Default Title","offer_id":51594088841527,"sku":"89-660","price":47.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2274\/5945\/files\/Freud_89-660_3_Piece_Undersized_Plywood_Router_Bit_Set_1_4_Inch_Shank_Carbide_Tipped_Dado_Groove_Cutter_For_Cabinet_Making_a.webp?v=1778618382","url":"https:\/\/www.1toptools.com\/products\/freud-89-660-3-piece-undersized-plywood-router-bit-set-1-4-inch-shank-carbide-tipped-dado-groove-cutter-for-cabinet-making","provider":"1 Top Tools","version":"1.0","type":"link"}