{"product_id":"value-collection-gh8816126-counterbore-1-3-16-in-3-flute-hss","title":"Value Collection GH8816126 Counterbore 1-3\/16 in 3 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Value Collection GH8816126 is an interchangeable pilot counterbore designed for precision counter-boring operations in metal fabrication and machining applications. Built from cobalt high-speed steel (HSS) with a bright, uncoated polished finish, this tool delivers reliable performance in ferrous and hard materials. It features a 1-3\/16 inch counterbore diameter, a 1 inch straight shank, and 3 flutes for efficient chip evacuation. Overall length is 6-3\/8 inches, with a shank length of 4-5\/8 inches. The interchangeable pilot system accepts a 5\/16 inch pilot shank diameter, allowing the same body to be used with different pilot sizes. Right-hand cutting direction is standard.\u003c\/p\u003e\u003cp\u003eThis counterbore is suited for machine shop, maintenance, and industrial production environments where accurately sized counterbores are required for socket head cap screws or similar fasteners. It is appropriate for use in manual mills, drill presses, and CNC machining centers. The straight shank design allows direct mounting in standard chucks or collet holders without adapters. Machinists and tool-and-die technicians are the primary installers of this type of tooling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt high-speed steel construction for increased heat and wear resistance compared to standard HSS\u003c\/li\u003e\n\u003cli\u003eBright, uncoated polished finish reduces friction and allows visual wear monitoring\u003c\/li\u003e\n\u003cli\u003e3-flute geometry promotes chip clearance and smooth cutting action\u003c\/li\u003e\n\u003cli\u003eInterchangeable pilot accepts 5\/16 inch pilot shank diameter\u003c\/li\u003e\n\u003cli\u003eStraight shank compatible with standard drill chucks and collet holders\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for use with conventional spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use interchangeable pilot counterbore for machine shop and industrial applications requiring a 1-3\/16 inch counterbore diameter with a 5\/16 inch interchangeable pilot shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists. Secure the straight shank firmly in a properly sized chuck or collet holder before operation. Ensure the correct pilot is seated and locked before beginning the cut. Power down and de-energize the spindle completely before changing pilots or removing the tool from the holder. Follow applicable shop safety procedures and machine manufacturer guidelines for speeds and feeds.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 1-3\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 4-5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Shank Diameter Compatibility\u003c\/strong\u003e: 5\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt 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\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 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: Value Collection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: GH8816126\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51702486335794,"sku":"GH8816126","price":371.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f1701ba1505fcbe7aa553ec97af0738d.jpg?v=1788411359","url":"https:\/\/voomisupply.com\/products\/value-collection-gh8816126-counterbore-1-3-16-in-3-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}