{"product_id":"value-collection-gh8815540-counterbore-27-32-in-hss","title":"Value Collection GH8815540 Counterbore 27\/32 in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION GH8815540 is a 3-flute interchangeable pilot counterbore designed for enlarging and finishing the entry of drilled holes to accept socket head cap screws, bolts, or similar fasteners. Machined from high speed steel with a bright, uncoated finish, this tool delivers reliable cutting performance across a range of steel, aluminum, and general-purpose workpiece materials. The straight shank measures 3\/4 inches in diameter and 3-7\/8 inches in length. Overall tool length is 5-3\/8 inches. The cutting diameter is 27\/32 inches. A pilot shank diameter compatibility of 1\/4 inch governs interchangeable pilot selection. Right-hand cutting direction is standard. Machinists, tool-and-die makers, and maintenance technicians are the primary users.\u003c\/p\u003e\u003cp\u003eThis counterbore is suited to general machining, maintenance, and fabrication environments where precise flat-bottomed recesses are required. Typical applications include preparing bolt hole seats in structural components, machine bases, fixtures, and tooling plates. The interchangeable pilot design allows the same body to accept different pilot sizes, reducing tooling inventory where multiple pilot diameters are needed. The bright finish is appropriate for dry or lightly lubricated cutting operations across non-hardened materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e27\/32 inch counterbore cutting diameter for accurate socket head recess sizing\u003c\/li\u003e\n\u003cli\u003e3-flute geometry provides good chip evacuation and a smooth flat-bottom finish\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction offers toughness and re-grindability\u003c\/li\u003e\n\u003cli\u003eInterchangeable pilot system accepts 1\/4 inch pilot shank diameter\u003c\/li\u003e\n\u003cli\u003e3\/4 inch straight shank for use in standard drill press or milling machine toolholders\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for dry cutting and light cutting fluid applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard interchangeable pilot counterbore for use in drill presses, milling machines, and similar machine tool setups requiring a 3\/4 inch straight shank holder and a 1\/4 inch interchangeable pilot.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the straight shank firmly in a properly sized collet, chuck, or toolholder before operation, and verify that the interchangeable pilot is seated and locked per the tool system requirements. Power down the machine and lock out energy sources before inserting or removing the pilot or changing tooling. Always use appropriate cutting fluid or follow the workpiece material manufacturer recommendations for dry cutting to maximize tool life.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 27\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 3-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Shank Diameter Compatibility\u003c\/strong\u003e: 1\/4 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\u003eAircraft Style\u003c\/strong\u003e: No\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: GH8815540\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51697212490034,"sku":"GH8815540","price":173.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e3595fcce9a7ff7e22e9e1f46fad01ee.jpg?v=1788350602","url":"https:\/\/voomisupply.com\/products\/value-collection-gh8815540-counterbore-27-32-in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}