{"product_id":"keo-902-000-007-solid-pilot-counterbore-0-228-in-3-flute","title":"Keo 902-000-007 Solid Pilot Counterbore 0.228 in 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KEO 902-000-007 is a solid pilot counterbore designed for precision spot-facing and counterboring operations in metalworking applications. Built from cobalt steel with a bright, uncoated finish, it offers good hardness and heat resistance for cutting ferrous and non-ferrous materials. The tool features a 0.228-inch counterbore diameter, a 0.138-inch standard pilot diameter, and three flutes for forward cutting. The straight-cylindrical shank measures 7\/32 inches in diameter, and the overall length is 3 inches. Machinists and toolroom technicians use this style of counterbore when seating socket-head cap screws to a controlled depth with a clean, flat-bottomed recess.\u003c\/p\u003e\u003cp\u003eThis counterbore is sized specifically for No. 6 socket-head cap screws, making it a common tool in precision machining, fixture building, and light fabrication. It is well suited for manual drill press work and CNC operations where a dedicated pilot is preferred over a separate pilot pin. The solid pilot design keeps the tool concentric with the existing hole, reducing the chance of runout during the counterboring pass. Typical applications include steel, aluminum, and other machinable metals encountered in general machine shop environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt steel construction provides elevated heat resistance compared to standard HSS\u003c\/li\u003e\n\u003cli\u003eSolid standard pilot at 0.138 inches keeps the tool concentric with the pilot hole\u003c\/li\u003e\n\u003cli\u003eThree-flute geometry for forward cutting with good chip clearance\u003c\/li\u003e\n\u003cli\u003eBright\/uncoated finish suitable for use with cutting fluids or dry cutting\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank at 7\/32 inches for direct chuck mounting\u003c\/li\u003e\n\u003cli\u003eCompatible with No. 6 socket-head cap screws for controlled seat depth\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with No. 6 socket-head cap screws. Fastener type compatibility is confirmed for socket-head cap screw applications with a standard pilot configuration.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed by a machinist or toolroom technician in a drill press, milling machine, or CNC spindle using a suitable chuck or collet that accepts a 7\/32-inch straight shank. Secure the workpiece firmly before operation and ensure the pilot hole is drilled to the correct clearance diameter before counterboring. Use an appropriate cutting fluid for the workpiece material to extend tool life and improve surface finish. Inspect the pilot and cutting edges for wear before each use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 0.228 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Diameter\u003c\/strong\u003e: 0.138 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePilot Type\u003c\/strong\u003e: Standard Solid Pilot\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: Forward\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Size Compatibility\u003c\/strong\u003e: No. 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Type Compatibility\u003c\/strong\u003e: Socket-Head Cap Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241603\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KEO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 902-000-007\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEO","offers":[{"title":"Default Title","offer_id":52082226921778,"sku":"902-000-007","price":73.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0286b121bf5ffa0910975365fce57e56.jpg?v=1790056642","url":"https:\/\/voomisupply.com\/products\/keo-902-000-007-solid-pilot-counterbore-0-228-in-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}