{"product_id":"value-collection-375-5156-boring-bar-m35-cobalt-3-4-inch-shank","title":"Value Collection 375-5156 Boring Bar M35 Cobalt 3\/4 Inch Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 375-5156 is a right-hand boring bar machined from M35 cobalt high-speed steel, designed for precision internal boring operations on lathes and boring mills. It accepts a minimum bore diameter of 0.625 inches and reaches a maximum bore depth of 3.125 inches, making it well suited for through-bores and blind bores in medium-depth workpieces. The 3\/4-inch shank diameter provides solid tool-post clamping rigidity, and the 4.875-inch overall length gives the operator adequate reach without excessive overhang. M35 cobalt construction offers improved heat resistance and edge retention compared to standard M2 high-speed steel, supporting higher cutting speeds in harder ferrous materials.\u003c\/p\u003e\u003cp\u003eThis boring bar is used in manual and CNC lathe operations for enlarging, truing, or finishing existing bored holes in steel, cast iron, stainless, and similar ferrous materials. It is a common choice for job-shop machinists, tool-and-die makers, and maintenance machinists who need a reliable single-point boring tool for moderate-depth internal turning work. The right-hand cutting direction is the standard orientation for conventional lathe setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM35 cobalt HSS construction for improved heat resistance and edge retention over standard HSS\u003c\/li\u003e\n\u003cli\u003eMinimum bore diameter of 0.625 inches suits a wide range of bore-finishing applications\u003c\/li\u003e\n\u003cli\u003eMaximum bore depth of 3.125 inches handles medium-depth through and blind bores\u003c\/li\u003e\n\u003cli\u003e3\/4-inch shank diameter for secure, rigid tool-post or boring-head clamping\u003c\/li\u003e\n\u003cli\u003e4.875-inch overall length balances reach and overhang rigidity\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for conventional lathe orientation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard tool-post holders and boring heads accepting a 3\/4-inch round shank, on manual engine lathes and CNC turning centers with appropriate tooling blocks.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and tool changes must be performed with the machine powered down and spindle fully stopped. The shank should be clamped with the minimum overhang necessary to reach bore depth, as excessive overhang increases chatter risk. A qualified machinist should verify tool height, cutting geometry, and workholding security before initiating a cut. Follow shop safety practices and applicable OSHA machine-guarding requirements when operating any lathe or boring mill.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoring Bar Type\u003c\/strong\u003e: Boring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Bore Diameter\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 3.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.875 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.43 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241601\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 375-5156\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51714728329522,"sku":"375-5156","price":115.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/998804938adb0a1429a2aa865aee843b.jpg?v=1788505528","url":"https:\/\/voomisupply.com\/products\/value-collection-375-5156-boring-bar-m35-cobalt-3-4-inch-shank","provider":"Voomi Supply","version":"1.0","type":"link"}