{"product_id":"cleveland-c46425-counterbore-5-16-in-3-flute-hss","title":"Cleveland C46425 Counterbore 5\/16 in 3 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C46425 is a 3-flute interchangeable pilot counterbore designed for precision counterboring operations in metalworking applications. Built from high-speed steel with a bright, uncoated finish, this tool delivers a 5\/16-inch counterbore diameter with a 19\/64-inch straight shank. The overall length measures 3-13\/16 inches, with a shank length of 3-1\/16 inches. The interchangeable pilot design allows the tool to accept different pilot sizes, making it adaptable across a range of hole sizes without replacing the entire body. Right-hand cutting direction is standard. This tool is intended for use by machinists, tool-and-die workers, and maintenance professionals working with ferrous and non-ferrous metals.\u003c\/p\u003e\u003cp\u003eThe C46425 is suited for counterboring operations on alloy tool steel, aluminum, cast iron, low-carbon steel, and medium-carbon steel. It is a practical choice for production shops and maintenance environments where consistent counterbore geometry is required for fastener seating, bearing bores, and similar precision fits. The straight shank is compatible with standard drill chucks and collet holders. The 3-flute configuration balances material removal rate with surface finish quality, making it appropriate for both roughing and finishing counterbore passes in light to moderate cutting conditions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e5\/16-inch counterbore diameter for precise fastener and bearing seat applications\u003c\/li\u003e\n\u003cli\u003e3-flute geometry balances chip evacuation and finish quality\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction provides wear resistance across a range of workpiece materials\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suited for general-purpose metalworking\u003c\/li\u003e\n\u003cli\u003eInterchangeable pilot accepts a 3\/32-inch pilot shank for flexible setup\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction, compatible with standard machine spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with interchangeable pilot systems accepting a 3\/32-inch pilot shank diameter. Compatible workpiece materials include alloy tool steel, aluminum, cast iron, low-carbon steel, and medium-carbon steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation of this counterbore should be performed by qualified machinists familiar with rotary cutting tools. Secure the straight shank firmly in a drill chuck or collet holder before operation, and verify the pilot is fully seated and locked before engaging the workpiece. Power down the machine spindle completely before changing pilots or removing the tool. Follow applicable shop safety procedures and machine manufacturer guidelines for speeds and feeds when working with high-speed steel tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 19\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 3-13\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 3-1\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Shank Diameter Compatibility\u003c\/strong\u003e: 3\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright, Uncoated, Polished\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Tool Steel, Aluminum, Cast Iron, Low-Carbon Steel, Medium-Carbon Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C46425\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51689321267506,"sku":"C46425","price":210.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/061c46f09618954dfc7496d462ba58dc.jpg?v=1788257521","url":"https:\/\/voomisupply.com\/products\/cleveland-c46425-counterbore-5-16-in-3-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}