{"product_id":"kennametal-1256316-boring-bar-micrograin-solid-carbide","title":"Kennametal 1256316 Boring Bar Micrograin Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1256316 is a solid carbide boring bar designed for precision internal turning and bore finishing operations on CNC and manual lathes. Built from micrograin carbide, it delivers the hardness and wear resistance needed for tight-tolerance bores in ferrous and non-ferrous materials. The right-hand cutting orientation suits standard spindle configurations. With a minimum bore diameter of 0.094 inches and an overall length of 1.15 inches, this bar is optimized for small-diameter, shallow-bore applications where rigidity and edge retention are critical. It is specified and installed by machinists and tooling technicians working in precision machining environments.\u003c\/p\u003e\u003cp\u003eThis boring bar is suited for small-bore internal machining in production and job-shop settings. Its compact geometry handles shallow bores up to 0.5 inches deep, making it appropriate for close-tolerance finishing passes on small hydraulic fittings, instrument housings, bearing bores, and similar workpieces. The 3.95 mm shank diameter fits compatible boring bar holders and micro-boring tooling systems. It is a single-point cutting tool sold individually and intended for setups requiring fine surface finish and dimensional accuracy in tight bore profiles.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMicrograin solid carbide construction for superior hardness and extended tool life\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for standard spindle rotation\u003c\/li\u003e\n\u003cli\u003eMinimum bore diameter of 0.094 inches enables machining of very small internal features\u003c\/li\u003e\n\u003cli\u003eMaximum bore depth of 0.5 inches suits shallow through and blind bore applications\u003c\/li\u003e\n\u003cli\u003e3.95 mm shank diameter for compatibility with micro-boring toolholding systems\u003c\/li\u003e\n\u003cli\u003eCompact overall length of 1.15 inches reduces overhang and maximizes rigidity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard tooling option for micro-boring bar holders accepting a 3.95 mm shank diameter in CNC turning and manual lathe setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Ensure the lathe or machining center spindle is fully stopped and the machine is locked out before changing tooling. Secure the shank firmly in the appropriate boring bar holder to the holder manufacturer's specified clamping procedure to prevent deflection during the cut. Verify bore diameter and depth clearances before initiating the cutting pass to avoid tool or workpiece damage.\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: 0.094 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.15 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3.95 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Micrograin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1256316\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51751457292594,"sku":"1256316","price":147.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/68f71d67f82361c96855b11e7a181a22.jpg?v=1788923507","url":"https:\/\/voomisupply.com\/products\/kennametal-1256316-boring-bar-micrograin-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}