{"product_id":"keo-906-000-121-combo-drill-countersink-size-5-7-16-in","title":"Keo 906-000-121 Combo Drill Countersink Size 5 7\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KEO 906-000-121 is a combination drill and countersink designed for simultaneous drilling and countersinking in a single pass. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it delivers improved wear resistance and extended tool life compared to uncoated HSS. The body measures 7\/16 inches in diameter with a 3\/16 inch drill point diameter and a 2-3\/4 inch overall length. The 118-degree drill point angle and 60-degree included countersink angle make this tool suited for creating clean, properly chamfered holes for flat-head fasteners. It is installed by machinists, fabricators, and trade technicians working with drill presses or hand-held power tools.\u003c\/p\u003e\u003cp\u003eThis combo drill countersink is used in metalworking, fabrication, and light manufacturing applications where countersunk holes are required for flush-mount fasteners. The right-hand cutting direction is standard for conventional drill press and CNC operations. With a plain cutting edge style, double end type, and compact 2-3\/4 inch overall length, it fits standard tool chucks without requiring adapters in most benchtop and floor-standing drill press setups. It is appropriate for trade size 5 applications in both production and maintenance environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-speed steel construction provides toughness across a broad range of workpiece materials\u003c\/li\u003e\n\u003cli\u003eTitanium nitride (TiN) coating increases surface hardness and reduces friction for longer tool life\u003c\/li\u003e\n\u003cli\u003e118-degree drill point angle suits general-purpose metal drilling\u003c\/li\u003e\n\u003cli\u003e60-degree included countersink angle matches standard flat-head fastener geometry\u003c\/li\u003e\n\u003cli\u003eDouble end design allows use of both ends, extending usable tool life\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, plain cutting edge style for conventional drill press and CNC use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard trade size 5 combo drill countersink compatible with drill chucks and collet holders accepting a 7\/16 inch body diameter tool shank in typical drill press, mill, and CNC setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this tool should be performed by qualified machinists or experienced trade technicians familiar with rotating cutting tools. Always power down and de-energize the machine before securing or changing tooling. Ensure the workpiece is clamped securely before beginning the cut to prevent movement. Wear appropriate eye protection and follow applicable shop safety standards when operating drill presses or CNC equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Size\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 7\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Diameter\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-3\/4 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\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Plain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Double\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0792 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: 906-000-121\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEO","offers":[{"title":"Default Title","offer_id":52009296331058,"sku":"906-000-121","price":29.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a4047e55bdf0b57632cc342c5ccddce5.jpg?v=1790003060","url":"https:\/\/voomisupply.com\/products\/keo-906-000-121-combo-drill-countersink-size-5-7-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}