{"product_id":"hertel-h-81186030500-combo-drill-countersink-size-3-cobalt","title":"Hertel H-81186030500 Combo Drill Countersink Size 3 Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL H-81186030500 is a combination drill and countersink tool designed for drilling and countersinking in a single operation. Built from cobalt high-speed steel with a bright polished finish, this tool delivers the heat and wear resistance needed for cutting harder materials. The body diameter measures 1\/4 inch, the drill point diameter is 7\/64 inch, and the overall length is 5 inches, qualifying it as a long-length tool. The drill point angle is 118 degrees and the included countersink angle is 60 degrees. Machinists and tool-and-die professionals use this tool for precision hole prep in production and maintenance settings.\u003c\/p\u003e\u003cp\u003eThis combo drill countersink is suited for general machining applications where a countersunk hole is required in a single pass. The double-end configuration extends tool life by providing two usable cutting ends. Its plain cutting edge style makes it compatible with manual and CNC drilling setups. Typical applications include countersinking for flat-head fasteners, center drilling, and deburring in ferrous and non-ferrous materials. The cobalt construction makes it a practical choice when working with stainless steel, cast iron, and other high-hardness workpieces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction provides enhanced heat resistance for cutting hard materials\u003c\/li\u003e\n\u003cli\u003eCombination drill and countersink performs two operations in a single pass\u003c\/li\u003e\n\u003cli\u003eDouble-end design offers two cutting ends for extended tool life\u003c\/li\u003e\n\u003cli\u003eBright polished finish reduces friction and aids chip evacuation\u003c\/li\u003e\n\u003cli\u003eLong-length tool at 5 inches overall for extended reach applications\u003c\/li\u003e\n\u003cli\u003e118-degree drill point angle and 60-degree included countersink angle for standard fastener prep\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use combo drill countersink for standard 1\/4-inch shank toolholders and drill chucks in manual mills, drill presses, and CNC machining centers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed by qualified machinists or toolroom technicians. Secure the 1\/4-inch body in a properly sized collet, end-mill holder, or drill chuck before use. Ensure the machine spindle is fully stopped before inserting or removing the tool. Follow applicable shop safety standards and machine manufacturer guidelines for speed and feed selection when working with cobalt cutting tools.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Size\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Diameter\u003c\/strong\u003e: 7\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 7\/64 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\u003eOverall Length\u003c\/strong\u003e: 5 inches\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 (Polished)\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\u003eLong Length Tool\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: H-81186030500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51744641089842,"sku":"H-81186030500","price":94.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d4b1d0714a47495ffff2fc57464658f9.jpg?v=1788859339","url":"https:\/\/voomisupply.com\/products\/hertel-h-81186030500-combo-drill-countersink-size-3-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}