{"product_id":"keo-906-000-249-combo-drill-countersink-no-16-cobalt","title":"Keo 906-000-249 Combo Drill Countersink No 16 Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KEO 906-000-249 is a combination drill and countersink designed to drill a pilot hole and cut a countersink in a single operation. Built from cobalt steel with a bright uncoated finish, it delivers the heat and wear resistance needed for harder workpiece materials. The tool features a 3\/16 inch drill point, a 1\/2 inch body diameter, and a bell-style cutting edge with a 60-degree included angle and a 118-degree drill point angle. At 3 inches overall length, it is sized for standard bench and hand-drill setups. Installed by machinists, toolmakers, and metalworking tradespeople, this countersink is suited for production and maintenance applications where consistent seat geometry is required.\u003c\/p\u003e\u003cp\u003eThis combo drill countersink is used in metalworking environments where fastener head seating is critical, including fabrication shops, maintenance repair operations, and manufacturing lines. The right-hand cut and double-end design make it compatible with standard drill presses, CNC machining centers, and hand drills running conventional clockwise rotation. Trade size No 16 fits common toolholder and chuck configurations used in both production and job-shop settings.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt steel construction provides enhanced heat resistance for harder ferrous and stainless materials\u003c\/li\u003e\n\u003cli\u003eBell-style cutting edge with 60-degree included angle produces consistent countersink seat geometry\u003c\/li\u003e\n\u003cli\u003e118-degree drill point angle for positive engagement on flat and curved workpiece surfaces\u003c\/li\u003e\n\u003cli\u003eDouble-end configuration extends usable tool life\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish allows for easy visual inspection of cutting edge condition\u003c\/li\u003e\n\u003cli\u003eRight-hand cut for use with standard clockwise-rotation spindles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard drill chucks and toolholders accepting a 1\/2 inch body diameter shank, compatible with drill presses, CNC machining centers, and hand drills configured for right-hand rotation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or metalworking tradespeople familiar with cutting tool safety. Secure the workpiece firmly before operation and confirm the spindle is fully stopped before changing or inspecting the tool. Use appropriate cutting fluid for the workpiece material to manage heat buildup and extend tool life. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed selection.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Size\u003c\/strong\u003e: No 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Diameter\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 3\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBell Diameter\u003c\/strong\u003e: 0.40 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Bell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Double\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: Cobalt\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: 0.2 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: 906-000-249\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEO","offers":[{"title":"Default Title","offer_id":52057826492722,"sku":"906-000-249","price":76.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ec23de047fa52e5a8ee3c02196c9cd1c.jpg?v=1790039165","url":"https:\/\/voomisupply.com\/products\/keo-906-000-249-combo-drill-countersink-no-16-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}