{"product_id":"micro-100-qbb-1801250-boring-bar-solid-carbide-1-4-in-shank","title":"Micro 100 QBB-1801250 Boring Bar Solid Carbide 1\/4 in Shank","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MICRO 100 QBB-1801250 is a solid carbide boring bar designed for precision internal diameter machining on lathes and boring mills. With a minimum bore diameter of 0.180 inches and a maximum bore depth of 1.25 inches, this right-hand bar handles tight-bore applications where rigidity and dimensional accuracy are critical. The 1\/4-inch shank diameter keeps the tool compact for small-bore work, while the solid carbide construction delivers the hardness and wear resistance needed for consistent, repeatable cuts. Machinists and toolroom professionals install this bar when finish quality and bore geometry tolerances are non-negotiable.\u003c\/p\u003e\u003cp\u003eThis boring bar is suited for small-bore turning operations in both production and job-shop environments. It fits standard tool holders accepting a 1\/4-inch shank and is appropriate for machining ferrous and non-ferrous materials where a right-hand cutting direction is required. The 0.005-inch corner radius contributes to controlled surface finish at the bore wall. Overall length of 2.5 inches keeps overhang manageable, reducing chatter in shallow to medium-depth bores.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for high rigidity and extended tool life\u003c\/li\u003e\n\u003cli\u003eMinimum bore diameter of 0.180 inches for tight small-bore applications\u003c\/li\u003e\n\u003cli\u003eMaximum bore depth of 1.25 inches with a 2.5-inch overall length\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for standard lathe and boring mill setups\u003c\/li\u003e\n\u003cli\u003e0.005-inch corner radius for controlled surface finish\u003c\/li\u003e\n\u003cli\u003e1\/4-inch shank diameter for compact tool holder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or toolroom addition for standard tool holders accepting a 1\/4-inch shank boring bar with right-hand cutting orientation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists following standard toolroom practices. Secure the shank firmly in the tool holder to the full recommended engagement depth to minimize deflection. Power down and lock out the machine spindle before setting or adjusting the boring bar. Verify bore depth clearance before engaging the cut to prevent 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: 0.180 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Bore Depth\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\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: MICRO 100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: QBB-1801250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MICRO 100","offers":[{"title":"Default Title","offer_id":52121381306674,"sku":"QBB-1801250","price":72.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/413435dc0f700be7ac603e3928f37666_18a78ca4-2fc7-4474-9a15-6e7fb6bf39ea.jpg?v=1790084502","url":"https:\/\/voomisupply.com\/products\/micro-100-qbb-1801250-boring-bar-solid-carbide-1-4-in-shank","provider":"Voomi Supply","version":"1.0","type":"link"}