{"product_id":"keo-902-000-024-solid-pilot-counterbore-0-604-in-3-flute","title":"Keo 902-000-024 Solid Pilot Counterbore 0.604 in 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KEO 902-000-024 is a solid pilot counterbore designed for precision counterboring operations in metalworking and machining applications. Built from cobalt steel with a bright, uncoated finish, it delivers durability and heat resistance during cutting. The tool features a 0.604-inch counterbore diameter, a 0.406-inch oversize pilot diameter, and three flutes arranged for forward cutting direction. The straight-cylindrical shank measures 0.5 inches in diameter, and the tool runs 5 inches in overall length. Machinists and tool-and-die professionals use this counterbore to create clean, flat-bottomed recesses that seat socket-head cap screws flush or below the workpiece surface.\u003c\/p\u003e\n\u003cp\u003eThis counterbore is sized for 3\/8-inch socket-head cap screws and is suited for use in machine shops, aerospace maintenance facilities, and general metalworking environments. The oversize pilot provides positive hole guidance during the cutting stroke, reducing chatter and improving concentricity. The cobalt steel construction makes it appropriate for use on harder ferrous alloys, stainless steel, and other demanding materials where high-speed steel tooling may wear prematurely. It is used in both manual milling and drill-press setups where repeatable counterbore depth and diameter are required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e0.604-inch counterbore diameter sized for 3\/8-inch socket-head cap screws\u003c\/li\u003e\n  \u003cli\u003e0.406-inch oversize pilot diameter for positive hole guidance and reduced chatter\u003c\/li\u003e\n  \u003cli\u003e3-flute geometry with forward cutting direction for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCobalt steel construction for improved heat and wear resistance on hard materials\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical 0.5-inch shank for standard chuck or collet mounting\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish  -  ready to use without additional surface treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 3\/8-inch socket-head cap screws. Fits standard drill presses and milling machine setups accepting a 0.5-inch straight-cylindrical shank.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists or toolroom technicians using a drill press, milling machine, or similar machine tool. Secure the shank firmly in the chuck or collet before operation and confirm the pilot fits the existing pilot hole without excessive play. Power down and lock out the machine before changing or inspecting the tool. Follow shop-standard speeds and feeds for cobalt steel tooling on the workpiece material being machined.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCounterbore Diameter\u003c\/strong\u003e: 0.604 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Diameter\u003c\/strong\u003e: 0.406 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5 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: Forward\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePilot Type\u003c\/strong\u003e: Oversize\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Compatibility\u003c\/strong\u003e: 3\/8-inch Socket-Head Cap Screw\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\u003eWeight\u003c\/strong\u003e: 0.36 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241603\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: KEO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 902-000-024\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEO","offers":[{"title":"Default Title","offer_id":51974154617138,"sku":"902-000-024","price":87.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6b2378408927436314add03b6c1200b6.jpg?v=1789976071","url":"https:\/\/voomisupply.com\/products\/keo-902-000-024-solid-pilot-counterbore-0-604-in-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}