{"product_id":"starrett-20690-welded-bandsaw-blade-4-6-tpi-bi-metal","title":"Starrett 20690 Welded Bandsaw Blade 4-6 Tpi Bi-metal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 20690 is a welded bi-metal bandsaw blade from the Intenss PRO series, designed for continuous cutting of ferrous and non-ferrous metals. It measures 10 feet 10.5 inches in length and 0.75 inches in width, with a blade thickness of 0.035 inches. The variable pitch tooth pattern runs at 4 to 6 TPI and features a positive rake angle with a raker tooth set, a combination that helps reduce vibration and improve cut quality across a range of material profiles. The high-speed steel tooth tips are welded to a flexible bi-metal back, giving the blade durability under repeated load without the brittleness of an all-hardened blade. Licensed metal fabricators and maintenance machinists are the typical end users.\u003c\/p\u003e\u003cp\u003eThis blade is suited for production and job-shop environments where both ferrous metals such as structural steel and non-ferrous metals such as aluminum or copper alloy stock are cut on vertical or horizontal band saws. The variable pitch design helps manage chip load when cutting mixed cross-sections or irregular profiles. The straight tooth form and raker set make it a reliable choice for general-purpose contour and straight cutting in a metal-cutting shop environment. It is not configured for contour cutting applications that require a narrower blade width.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBi-metal construction with high-speed steel teeth bonded to a flexible back for extended blade life\u003c\/li\u003e\n\u003cli\u003eVariable pitch at 4-6 TPI reduces harmonic vibration and improves surface finish on a range of metal cross-sections\u003c\/li\u003e\n\u003cli\u003ePositive rake angle promotes aggressive, efficient chip removal in metal-cutting applications\u003c\/li\u003e\n\u003cli\u003eRaker tooth set provides balanced cutting action suitable for solid stock and structural shapes\u003c\/li\u003e\n\u003cli\u003eFlexible back type resists fatigue cracking under continuous band saw operation\u003c\/li\u003e\n\u003cli\u003eWelded construction delivers a consistent, gap-free loop for smooth tracking on band saw wheels\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or aftermarket band saw blade for metal-cutting band saws that accept a blade loop measuring 10 feet 10.5 inches in length and 0.75 inches in width with a 0.035-inch thickness.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or maintenance technician familiar with band saw blade tensioning and tracking procedures. Power down and lock out the band saw at the disconnect before removing the old blade or installing the new one. Wear cut-resistant gloves when handling the blade, as the tooth edges are sharp. Verify wheel diameter, blade guide spacing, and blade tension specifications on the machine nameplate before running the saw.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Length\u003c\/strong\u003e: 10 feet 10.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlade Width\u003c\/strong\u003e: 0.75 inches\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: 4-6 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\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: 2.7 pounds\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: 20690\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541462516018,"sku":"20690","price":120.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/24200e8ad6f3281f1b5ee27144de562d_c89b275f-a423-46d3-b8a9-7d46d0721cfe.jpg?v=1785876837","url":"https:\/\/voomisupply.com\/products\/starrett-20690-welded-bandsaw-blade-4-6-tpi-bi-metal","provider":"Voomi Supply","version":"1.0","type":"link"}