{"product_id":"keo-919-000-039-countersink-set-7-pc-6-flute-tialn","title":"Keo 919-000-039 Countersink Set 7 Pc 6 Flute Tialn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KEO 919-000-039 is a 7-piece countersink set engineered for chamfering, countersinking, and deburring in metal fabrication and machining applications. Built from cobalt steel with a TiAlN coating, these countersinks are suited for work in harder materials where high-speed steel tools fall short. The set covers head diameters from 0.25 inches to 1 inch, shank diameters from 0.25 inches to 0.5 inches, and overall lengths from 1.5 inches to 2.75 inches. Each countersink features 6 flutes and an 82-degree included angle, which is the standard angle for most fastener head seating in metalworking.\u003c\/p\u003e\u003cp\u003eThis set is used in machine shops, maintenance facilities, and production environments where a range of countersink sizes is required at a single workstation. The 7-piece assortment spans the most common head diameter increments, making it practical for technicians and machinists who need to prep holes for flat-head fasteners, deburr drilled edges, or cut chamfers across varying stock sizes. Tools store in an included plastic case for organized access at the bench or in the field.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e7-piece set covers head diameters from 0.25 inches to 1 inch in common increments\u003c\/li\u003e\n\u003cli\u003e6-flute geometry for smooth, chatter-resistant cutting action\u003c\/li\u003e\n\u003cli\u003e82-degree included angle matches standard flat-head fastener specifications\u003c\/li\u003e\n\u003cli\u003eCobalt steel construction for improved heat and wear resistance over HSS\u003c\/li\u003e\n\u003cli\u003eTiAlN coating extends tool life in harder workpiece materials\u003c\/li\u003e\n\u003cli\u003eShank diameters from 0.25 inches to 0.5 inches for compatibility with standard drill chucks and collets\u003c\/li\u003e\n\u003cli\u003eIncludes plastic storage case to organize and protect all 7 pieces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard drill presses, CNC machining centers, and hand drills equipped with chucks or collets accepting shank diameters from 0.25 inches to 0.5 inches. Suitable for chamfering, countersinking, and deburring operations on metal workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCountersinks should be installed by a qualified machinist or tooling technician. Secure the shank firmly in a drill chuck or collet before operation and verify runout is within acceptable limits to prevent chatter. Always power down and de-energize the machine before changing tooling. Follow applicable shop safety standards and machine manufacturer guidelines when setting spindle speed for the workpiece material.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e: 7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Head Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Head Diameter\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 82 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Shank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Shank Diameter\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Overall Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Overall Length\u003c\/strong\u003e: 2.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Chamfering, Countersinking, Deburring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Case Material\u003c\/strong\u003e: Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.9 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: KEO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 919-000-039\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KEO","offers":[{"title":"Default Title","offer_id":52056916492594,"sku":"919-000-039","price":252.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4aaa192c0ac445c9f42220a82c101b37.jpg?v=1790038547","url":"https:\/\/voomisupply.com\/products\/keo-919-000-039-countersink-set-7-pc-6-flute-tialn","provider":"Voomi Supply","version":"1.0","type":"link"}