{"product_id":"hertel-300-005503-combo-drill-countersink-1-4-in-carbide","title":"Hertel 300-005503 Combo Drill Countersink 1\/4 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 300-005503 is a solid carbide combination drill and countersink designed to drill and chamfer in a single operation. Built to No. 3 trade size with a 1\/4 inch body diameter, the tool features a 7\/64 inch drill point diameter and a 118-degree drill point angle. The cutting geometry uses a plain cutting edge style with a 60-degree included angle for clean countersink profiles. A titanium nitride (TiN) coating reduces friction and extends tool life on ferrous and non-ferrous materials. Right-hand cutting direction. Overall length is 4 inches, qualifying this tool as a long-length style.\u003c\/p\u003e\u003cp\u003eThis combination drill countersink is suited for metalworking applications where a countersunk hole must be produced in a single setup. The double-end design extends usable tool life by providing two cutting ends. Typical applications include machine shops, fabrication environments, and toolroom work where precise countersink geometry is required for fastener seating. The tool is not tapered and does not use an insertable cutter head, making it a solid one-piece construction appropriate for manual feed or CNC drilling operations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in demanding cutting applications\u003c\/li\u003e\n\u003cli\u003eTiN coating reduces friction and extends cutting life compared to uncoated carbide\u003c\/li\u003e\n\u003cli\u003e118-degree drill point angle with 60-degree included countersink angle for standard fastener profiles\u003c\/li\u003e\n\u003cli\u003eDouble-end design provides two usable cutting ends per tool\u003c\/li\u003e\n\u003cli\u003eLong-length tool at 4 inches overall length for increased reach\u003c\/li\u003e\n\u003cli\u003eRight-hand, plain cutting edge style for compatibility with standard drill press and CNC spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a No. 3 trade size combo drill countersink for use in standard 1\/4 inch collets or chucks in drill press, milling machine, or CNC machining center setups requiring a combined drill and countersink operation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tool is installed and removed by a licensed machinist or qualified toolroom technician. Secure the tool firmly in an appropriate collet or drill chuck sized for a 1\/4 inch shank before operation. Power down and de-energize the machine spindle completely before changing tooling. Do not exceed the machine spindle speed rating recommended for the workpiece material and tool diameter.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Size\u003c\/strong\u003e: No. 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Diameter\u003c\/strong\u003e: 7\/64 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 7\/64 inch\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: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\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\u003eLong Length Tool\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 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: 300-005503\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51727361638706,"sku":"300-005503","price":114.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/024020bfcca7b9f2701bf60152a4633e.jpg?v=1788676734","url":"https:\/\/voomisupply.com\/products\/hertel-300-005503-combo-drill-countersink-1-4-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}