{"product_id":"value-collection-gh8780363-counterbore-9-16-inch-3-flute","title":"Value Collection GH8780363 Counterbore 9\/16 Inch 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION GH8780363 is a 9\/16 inch interchangeable pilot counterbore designed for precision counterboring operations in metal fabrication and machining applications. Built from high speed steel with a bright, uncoated polished finish, this tool delivers consistent cutting performance across a range of ferrous and non-ferrous materials. The 1MT Morse taper shank provides a secure, self-holding fit in compatible drill press and milling machine spindles. With 3 right-hand cutting flutes and an overall length of 4-5\/16 inches, the tool balances reach and rigidity for accurate seat formation around drilled holes.\u003c\/p\u003e\n\u003cp\u003eThis counterbore is suited for machine shops, maintenance facilities, and production environments where counterbored fastener seats are required. The interchangeable pilot design allows the operator to swap pilots to match different clearance hole diameters without replacing the body, making it a practical choice for shops that work across multiple fastener sizes. The 3\/16 inch pilot shank diameter compatibility suits standard pilot configurations for this counterbore diameter. Licensed machinists and tool-and-die technicians are the primary installers and users of this tooling.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e9\/16 inch counterbore diameter for precise fastener seat sizing\u003c\/li\u003e\n  \u003cli\u003e3 right-hand cutting flutes for smooth material removal and chip clearance\u003c\/li\u003e\n  \u003cli\u003e1MT Morse taper shank for secure self-holding fit in compatible spindles\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction for durability across a range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated polished finish suitable for general-purpose machining\u003c\/li\u003e\n  \u003cli\u003eInterchangeable pilot accepts 3\/16 inch pilot shank for flexible setup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with machines equipped with a No. 1 Morse taper (1MT) spindle socket. Compatible with standard interchangeable pilots with a 3\/16 inch pilot shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists familiar with rotary cutting tools and Morse taper tooling. Ensure the machine spindle is fully de-energized and locked out before seating or removing the taper shank. Clean both the tool taper and spindle socket before insertion to ensure full contact and prevent runout. Secure the pilot firmly before operation and confirm correct rotational direction matches the right-hand cutting geometry of this tool.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 9\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-5\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Morse Taper\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Taper Designation\u003c\/strong\u003e: 1MT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Shank Diameter Compatibility\u003c\/strong\u003e: 3\/16 inches\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\u003eAircraft Style\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: GH8780363\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51693653000498,"sku":"GH8780363","price":75.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4f78893def4b6e6a498cddf3060ee165.jpg?v=1788315535","url":"https:\/\/voomisupply.com\/products\/value-collection-gh8780363-counterbore-9-16-inch-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}