{"product_id":"starrett-20639-welded-bandsaw-blade-bi-metal-variable-pitch","title":"Starrett 20639 Welded Bandsaw Blade Bi-metal Variable Pitch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 20639 is a welded bi-metal bandsaw blade engineered for demanding cutting applications in metal fabrication and industrial environments. The blade measures 162 inches (13 feet 6 inches) in length, 1 inch in width, and 0.035 inches thick. It runs a variable pitch of 5 to 8 TPI, which reduces harmonic vibration during the cut and helps extend blade life. The tooth material is high speed steel set in a raker pattern with a positive rake angle. Licensed HVAC, plumbing, and mechanical contractors as well as metalworking professionals install and operate this blade on compatible bandsaw machines for cutting ferrous and non-ferrous metals.\u003c\/p\u003e\u003cp\u003eThe 20639 is part of the Starrett Intenss PRO series, which targets shops and service facilities cutting a range of metal stock including mild steel, structural steel, aluminum, copper, and similar materials. The variable pitch tooth configuration makes it suitable for interrupted cuts and varying cross-sections, allowing a single blade to handle diverse workpieces without a blade change. It is appropriate for both production cutting environments and job-site fabrication scenarios where consistent, accurate cuts in metal are required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBi-metal construction pairs a flexible back with high speed steel teeth for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eVariable 5 to 8 TPI pitch reduces vibration and harmonics for smoother cuts\u003c\/li\u003e\n\u003cli\u003ePositive rake angle promotes aggressive, efficient material removal in ferrous and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eRaker tooth set provides balanced chip clearance and consistent cut quality\u003c\/li\u003e\n\u003cli\u003ePart of the Intenss PRO series, designed for demanding production cutting cycles\u003c\/li\u003e\n\u003cli\u003eWelded construction for a continuous, properly tensioned loop ready to install\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-fit welded bandsaw blade for bandsaws accepting a 162-inch blade length with a 1-inch blade width and 0.035-inch blade thickness. Suitable for cutting ferrous and non-ferrous metals.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified operator familiar with bandsaw equipment. Power down and lock out the bandsaw before removing the old blade or installing a new one, following OSHA lockout\/tagout procedures. Verify wheel alignment, blade guides, and blade tension according to the machine manufacturer specifications before resuming operation. Wear cut-resistant gloves when handling the blade, as the high speed steel teeth present a laceration hazard.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Length\u003c\/strong\u003e: 162 inches (13 feet 6 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Width\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Thickness\u003c\/strong\u003e: 0.035 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeeth Per Inch (TPI)\u003c\/strong\u003e: 5 to 8 variable pitch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Material\u003c\/strong\u003e: Bi-Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth Set\u003c\/strong\u003e: Raker\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth Form\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTooth Rake Angle\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Type\u003c\/strong\u003e: Flexible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch Pattern\u003c\/strong\u003e: Variable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Ferrous Metal, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Intenss PRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242112\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: STARRETT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20639\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541447573810,"sku":"20639","price":159.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24200e8ad6f3281f1b5ee27144de562d_e0ed70ea-06f1-4154-81e0-2d33de51c06d.jpg?v=1785876445","url":"https:\/\/voomisupply.com\/products\/starrett-20639-welded-bandsaw-blade-bi-metal-variable-pitch","provider":"Voomi Supply","version":"1.0","type":"link"}