{"product_id":"freza-semicerc-convex-r3-r60-hss-vidia","title":"Convex Half-Round Router Bit R3 – R60 mm | Concave Groove for Wood – Premium HSS \/ T.C.T. Carbide","description":"\u003cstyle\u003e\n  .tabel-container {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n    -webkit-overflow-scrolling: touch;\n  }\n  .tabel-specificatii {\n    width: 100%;\n    border-collapse: collapse;\n    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;\n    font-size: 14px;\n    color: #333;\n    background-color: #fff;\n    margin-bottom: 15px;\n    border: 1px solid #ced4da;\n  }\n  .tabel-specificatii tr { border-bottom: 1px solid #eee; }\n  .tabel-specificatii tr:nth-child(even) { background-color: #fdfdfd; }\n  .tabel-specificatii tr:last-child { border-bottom: none; }\n  .tabel-specificatii td { padding: 12px 15px; vertical-align: middle; }\n  .tabel-specificatii td.eticheta-desktop {\n    font-weight: bold; color: #495057; width: 35%; text-align: left;\n    background-color: #f8f9fa; border-right: 1px solid #eee; display: table-cell;\n  }\n  .tabel-specificatii td.valoare-specificatie { text-align: left; width: 65%; display: table-cell; }\n  .eticheta-mobil { display: none; }\n  @media screen and (max-width: 767px) {\n    .tabel-specificatii, .tabel-specificatii tbody,\n    .tabel-specificatii tr, .tabel-specificatii td {\n      display: block; width: 100% !important; box-sizing: border-box;\n    }\n    .tabel-specificatii tr {\n      margin-bottom: 15px; border: 1px solid #ced4da; border-radius: 4px;\n      box-shadow: 0 1px 3px rgba(0,0,0,0.05); background: #fdfdfd;\n    }\n    .tabel-specificatii td.eticheta-desktop { display: none !important; }\n    .tabel-specificatii td.valoare-specificatie {\n      border: none; padding: 12px !important; text-align: left !important; width: 100% !important;\n    }\n    .eticheta-mobil {\n      display: block; font-weight: bold; color: #495057; font-size: 11px;\n      text-transform: uppercase; letter-spacing: 0.3px; margin-bottom: 6px;\n    }\n  }\n  .zona-verde {\n    background-color: #ebf5fb; border-left: 5px solid #27ae60; padding: 15px;\n    margin: 15px 0; font-family: 'Segoe UI', sans-serif; font-size: 14px; border-radius: 0 4px 4px 0;\n  }\n  .zona-rosie {\n    background-color: #fdf2f2; border-left: 5px solid #e74c3c; padding: 15px;\n    margin: 15px 0; font-family: 'Segoe UI', sans-serif; font-size: 14px;\n    border-radius: 0 4px 4px 0; color: #2c3e50;\n  }\n  .text-danger { color: #dc3545; font-weight: bold; }\n  .zona-siguranta {\n    background-color: #f4f5f7; border-left: 5px solid #5d6d7e; padding: 15px;\n    margin: 15px 0; font-family: 'Segoe UI', sans-serif; font-size: 14px;\n    border-radius: 0 4px 4px 0; color: #2c3e50;\n  }\n  .tabel-scule {\n    width: 100%;\n    border-collapse: collapse;\n    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;\n    font-size: 14px;\n    color: #333;\n    background-color: #fff;\n    min-width: 500px;\n  }\n  .tabel-scule th {\n    background-color: #2c3e50; color: #ffffff; font-weight: 600;\n    text-align: center; padding: 12px; border: 1px solid #34495e;\n  }\n  .tabel-scule td {\n    padding: 12px; border: 1px solid #e0e0e0; text-align: center;\n  }\n  .tabel-scule td:first-child {\n    text-align: left; font-weight: bold; background-color: #f8f9fa;\n  }\n  .tabel-scule tr:nth-child(even) { background-color: #f8f9fa; }\n  @media screen and (max-width: 600px) {\n    .tabel-scule { font-size: 12px; }\n    .tabel-scule th, .tabel-scule td { padding: 6px 4px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2 style=\"text-align: center; font-weight: bold; text-transform: uppercase; color: #1f618d; letter-spacing: 0.5px; margin-bottom: 20px;\"\u003eConvex Half-Round Router Bit R3 – R60 mm | Concave Groove on Wood – HSS Premium \/ T.C.T. Carbide\u003c\/h2\u003e\n\n\u003cp style=\"font-family: 'Segoe UI', sans-serif; font-size: 15px; color: #333; line-height: 1.5;\"\u003eProfessional router bit with bore and \u003cstrong\u003econvex\u003c\/strong\u003e profile (outwardly curved) — used for carving a \u003cstrong\u003econcave groove\u003c\/strong\u003e on wood: decorative grooves, functional channels, carved handles, or classic architectural elements. Often used with a concave (rounding) router bit for alternating decorative bead-and-channel profiles. Available in a wide range of radii, from R3 to R60 mm, and in \u003cstrong\u003eHSS M2 Premium\u003c\/strong\u003e and \u003cstrong\u003eT.C.T. Carbide\u003c\/strong\u003e variants — select material, radius, and bore from the menu.\u003c\/p\u003e\n\n\u003cdiv class=\"tabel-container\"\u003e\n\n\u003ctable class=\"tabel-specificatii\"\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eProfile\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eProfile\u003c\/span\u003eConvex router bit (outwardly curved) – produces an inwardly carved concave groove on wood\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eAvailable Radius Range\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\" style=\"font-weight: bold; color: #1f618d;\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eAvailable Radius Range\u003c\/span\u003eR3 – R60 mm (selectable variants)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eActive Working Space\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eActive Working Space\u003c\/span\u003e2 × Selected Radius (e.g., R20 mm variant has 40 mm groove width)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eOuter Diameter\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eOuter Diameter\u003c\/span\u003eVaries depending on the chosen radius – according to the technical drawing of the variant\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eBore (d)\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eBore (d)\u003c\/span\u003eIndicated for each variant: Ø30 mm or Ø32 mm | Ø32\/30 mm (with reduction bush included) | other sizes on request\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eCutting Edge Material\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eCutting Edge Material\u003c\/span\u003e\u003cb\u003eHSS M2 Premium\u003c\/b\u003e (6.5% Tungsten), 64–66 HRC | \u003cb\u003eT.C.T. Carbide\u003c\/b\u003e (Tungsten Carbide), 85–92 HRC – select variant\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eConstruction Type\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eConstruction Type\u003c\/span\u003eBrazed with silver alloy (Ag), successively resharpenable; re-brazable when extensively worn\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eBody Finish\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eBody Finish\u003c\/span\u003eBlack oxidation (bluing) – additional anti-corrosion protection\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eNumber of Teeth\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eNumber of Teeth\u003c\/span\u003e4 pcs.\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eRecommended Speed\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eRecommended Speed\u003c\/span\u003e6,000 or 9,000 RPM – the exact value is indicated on each router bit\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eEstimated Yield\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eEstimated Yield\u003c\/span\u003eUp to 3,000 linear meters (in softwoods, before the first resharpening)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eQuantity per Parcel\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eQuantity per Parcel\u003c\/span\u003e1 x Router Bit (for multiple pieces, adjust quantity at checkout)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd class=\"eticheta-desktop\"\u003eCountry of Origin\u003c\/td\u003e\n\n\u003ctd class=\"valoare-specificatie\"\u003e\n\n\u003cspan class=\"eticheta-mobil\"\u003eCountry of Origin\u003c\/span\u003eUkraine\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"zona-verde\"\u003e\n\n  \u003ch4 style=\"margin-top: 0; color: #27ae60; font-weight: bold; text-transform: uppercase; margin-bottom: 10px;\"\u003e🔧 MAIN FEATURES:\u003c\/h4\u003e\n\n  \u003cul\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003ePrecise Concave Groove:\u003c\/strong\u003e the convex profile of the router bit carves a uniform and aesthetic groove on wood, across the entire R3–R60 mm radius range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eDurable Cutting Edges:\u003c\/strong\u003e 4 brazed teeth made of HSS M2 or T.C.T. Carbide, resistant to intensive use.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eT.C.T. Carbide for Composites:\u003c\/strong\u003e carbide inserts resist the abrasive wear of synthetic binders in MDF, particle board, and HDF, where HSS would wear prematurely.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eIdeal Pair with Concave Router Bit:\u003c\/strong\u003e combined with the rounding (concave) router bit, it allows for alternating decorative bead-and-channel profiles, typical for frames and classic architectural elements.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eBody with Oxidized Finish:\u003c\/strong\u003e black oxidation (bluing) treatment provides additional corrosion protection, in addition to the characteristic matte black appearance.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eLong-Term Investment:\u003c\/strong\u003e inserts can be successively resharpened at a specialized center (to maintain the rake angle), and with advanced wear, the router bit body can be re-brazed with new inserts.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eCompatible with Classic Spindle Moulders and 4-Sided Planers:\u003c\/strong\u003e mounts on both classic spindle moulders and 4-sided planers.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eCustom Radius on Request:\u003c\/strong\u003e if your project requires a specific radius outside the standard range, you can contact us with your project's technical drawing.\u003c\/li\u003e\n\n  \u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"zona-rosie\"\u003e\n\n  \u003ch4 style=\"margin-top: 0; color: #c0392b; font-weight: bold; text-transform: uppercase; margin-bottom: 10px;\"\u003e⚠️ USAGE LIMITATIONS:\u003c\/h4\u003e\n\n  \u003cul\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eHSS M2 Variant:\u003c\/strong\u003e \u003cspan class=\"text-danger\"\u003e❌ NOT recommended for use on particle board, MDF, HDF, or very hard exotic wood.\u003c\/span\u003e For these materials, select the T.C.T. Carbide variant.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eCarbide Variant on Softwood:\u003c\/strong\u003e requires constant feed – stalling in rotation on resinous woods can cause local burns.\u003c\/li\u003e\n\n  \u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align: center; margin: 20px 0;\"\u003e\n\n  \u003ch2 style=\"font-size: 20px; color: #1a1a1a;\"\u003e🛠️ Selection Guide: HSS M2 vs. T.C.T. Carbide\u003c\/h2\u003e\n\n  \u003cp style=\"text-align: left; font-family: 'Segoe UI', sans-serif; font-size: 14px; color: #333;\"\u003eChoosing the correct cutting edge material directly influences the finish quality and tool lifespan:\u003c\/p\u003e\n\n\n  \u003cdiv class=\"tabel-container\"\u003e\n\n    \u003ctable class=\"tabel-scule\"\u003e\n\n      \u003cthead\u003e\n\n        \u003ctr\u003e\n\n          \u003cth style=\"padding: 12px; width: 34%; text-align: left;\"\u003eMaterial Processed\u003c\/th\u003e\n\n          \u003cth style=\"padding: 12px; width: 33%; background-color: #1a5276;\"\u003eHSS M2 Premium ⭐\u003cbr\u003e\u003csmall\u003e(6.5% Tungsten)\u003c\/small\u003e\n\n\u003c\/th\u003e\n\n          \u003cth style=\"padding: 12px; width: 33%; background-color: #117a65; color: white;\"\u003eT.C.T. Carbide ⭐\u003cbr\u003e\u003csmall\u003e(Tungsten Carbide)\u003c\/small\u003e\n\n\u003c\/th\u003e\n\n        \u003c\/tr\u003e\n\n      \u003c\/thead\u003e\n\n      \u003ctbody\u003e\n\n        \u003ctr\u003e\n\n          \u003ctd style=\"font-weight: bold; text-align: left;\"\u003eSoftwood \u003cbr\u003e\u003csmall\u003e(Spruce, Pine, Fir)\u003c\/small\u003e\n\n\u003c\/td\u003e\n\n          \u003ctd style=\"background-color: #eaf2f8; font-weight: bold; color: #1f618d;\"\u003e⭐ 100%\u003cbr\u003e(Flawless Finish)\u003c\/td\u003e\n\n          \u003ctd style=\"color: #922b21;\"\u003e❌ Risk of burning\u003cbr\u003e(High friction)\u003c\/td\u003e\n\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n\n          \u003ctd style=\"font-weight: bold; text-align: left;\"\u003eHardwood \u003cbr\u003e\u003csmall\u003e(Beech, Oak, Ash)\u003c\/small\u003e\n\n\u003c\/td\u003e\n\n          \u003ctd style=\"color: #1f618d;\"\u003e80%\u003cbr\u003e(Efficient)\u003c\/td\u003e\n\n          \u003ctd style=\"background-color: #e8f8f5; font-weight: bold; color: #117a65;\"\u003e⭐ 100%\u003cbr\u003e(Maximum resistance)\u003c\/td\u003e\n\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n\n          \u003ctd style=\"font-weight: bold; text-align: left;\"\u003eMDF \/ Particle Board \/ HDF \/ Laminated\u003c\/td\u003e\n\n          \u003ctd class=\"text-danger\"\u003eNot recommended\u003c\/td\u003e\n\n          \u003ctd style=\"background-color: #e8f8f5; font-weight: bold; color: #117a65;\"\u003e⭐ 100%\u003cbr\u003e(Optimal)\u003c\/td\u003e\n\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n\n          \u003ctd style=\"font-weight: bold; text-align: left;\"\u003eNumber of Resharpenings\u003c\/td\u003e\n\n          \u003ctd style=\"font-weight: bold; color: #1f618d;\"\u003eMaximum (M2)\u003c\/td\u003e\n\n          \u003ctd\u003eLimited (3 mm)\u003c\/td\u003e\n\n        \u003c\/tr\u003e\n\n        \u003ctr\u003e\n\n          \u003ctd style=\"font-weight: bold; text-align: left;\"\u003eCutting Edge Material Hardness\u003c\/td\u003e\n\n          \u003ctd style=\"font-weight: bold; color: #1f618d;\"\u003e64 – 66 HRC\u003c\/td\u003e\n\n          \u003ctd style=\"font-weight: bold; color: #117a65;\"\u003e85 – 92 HRC\u003c\/td\u003e\n\n        \u003c\/tr\u003e\n\n      \u003c\/tbody\u003e\n\n    \u003c\/table\u003e\n\n  \u003c\/div\u003e\n\n\n  \u003ch3 style=\"text-align: left; font-family: 'Segoe UI', sans-serif; color: #1a1a1a; margin-top: 20px;\"\u003e✅ Purchase Conclusions:\u003c\/h3\u003e\n\n  \u003col style=\"text-align: left; font-family: 'Segoe UI', sans-serif; font-size: 14px; color: #333;\"\u003e\n\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n\n\u003cstrong\u003eHSS M2 – for solid wood:\u003c\/strong\u003e ideal for soft and hardwoods, a cutting edge that sharpens more finely, leaving the concave groove perfectly smooth directly from the machine.\u003c\/li\u003e\n\n    \u003cli style=\"margin-bottom: 8px;\"\u003e\n\n\u003cstrong\u003eT.C.T. Carbide – for composites and intensive production:\u003c\/strong\u003e mandatory for MDF, particle board, HDF, or abrasive exotic\/composite woods, where it lasts much longer than HSS without resharpening.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eSimple Configuration:\u003c\/strong\u003e select the Material (HSS\/Carbide), the Radius (R3–R60) suitable for your project, and the Spindle Bore according to the flange of the machinery used in your workshop.\u003c\/li\u003e\n\n  \u003c\/ol\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"zona-siguranta\"\u003e\n\n  \u003ch4 style=\"margin-top: 0; color: #5d6d7e; font-weight: bold; text-transform: uppercase; margin-bottom: 10px;\"\u003e🦺 SAFETY MEASURES DURING USE:\u003c\/h4\u003e\n\n  \u003cul\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eMandatory protective equipment:\u003c\/strong\u003e safety glasses (against projected chips), mask or respirator filter (fine wood dust), and earmuffs for prolonged work.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eAttention to hands and fingers:\u003c\/strong\u003e maintain a safe distance from the cutting area and use feed\/push devices where possible; do not manually intervene near the moving router bit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eCheck the secure fastening\u003c\/strong\u003e of the router bit and spacer rings on the spindle before starting the machine.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eObserve the recommended speed\u003c\/strong\u003e indicated for each router bit to avoid vibrations or the risk of cutting edge breakage.\u003c\/li\u003e\n\n  \u003c\/ul\u003e\n\n\n\u003c\/div\u003e","brand":"SolGrat","offers":[{"title":"HSS R3 x d30","offer_id":58328062820697,"sku":"7R3HSS-d30","price":155.0,"currency_code":"RON","in_stock":true},{"title":"HSS R4 x d30","offer_id":58328062853465,"sku":"7R4HSS-d30","price":174.0,"currency_code":"RON","in_stock":false},{"title":"HSS R5 x d32\/30","offer_id":58327991583065,"sku":"7R5HSS-d32","price":128.0,"currency_code":"RON","in_stock":false},{"title":"HSS R6 x d32\/30","offer_id":58328142250329,"sku":"7R6HSS-d32","price":155.0,"currency_code":"RON","in_stock":true},{"title":"HSS R8 x d32\/30","offer_id":58328145985881,"sku":"7R8HSS-d32","price":264.0,"currency_code":"RON","in_stock":true},{"title":"HSS R10 x d30","offer_id":58328146018649,"sku":"7R10HSS-d30","price":368.0,"currency_code":"RON","in_stock":true},{"title":"HSS R12 x d30","offer_id":58328146051417,"sku":"7R12HSS-d30","price":398.0,"currency_code":"RON","in_stock":true},{"title":"HSS R14 x d30","offer_id":58328146084185,"sku":"7R14HSS-d30","price":550.0,"currency_code":"RON","in_stock":true},{"title":"HSS R16 x d32\/30","offer_id":58328146116953,"sku":"7R16HSS-d32","price":334.0,"currency_code":"RON","in_stock":true},{"title":"HSS R18 x d32\/30","offer_id":58328146149721,"sku":"7R18HSS-d32","price":474.0,"currency_code":"RON","in_stock":true},{"title":"HSS R20 x d30","offer_id":58328146182489,"sku":"7R20HSS-d30","price":527.0,"currency_code":"RON","in_stock":true},{"title":"HSS R20 x d35\/30","offer_id":58659216294233,"sku":"7R20-d35","price":500.0,"currency_code":"RON","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/9309\/5257\/files\/0700R20.jpg?v=1770199854","url":"https:\/\/solgrat.com\/en\/products\/freza-semicerc-convex-r3-r60-hss-vidia","provider":"SolGrat","version":"1.0","type":"link"}