{"product_id":"hertel-h-81186020600-combo-drill-countersink-size-2-cobalt","title":"Hertel H-81186020600 Combo Drill Countersink Size 2 Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL H-81186020600 is a size 2 combination drill and countersink made from cobalt high-speed steel, designed for simultaneous center drilling and countersinking in a single operation. The tool features a 3\/16 inch body diameter, a 5\/64 inch drill point diameter, and an overall length of 6 inches, placing it in the long-length category. The 118-degree drill point angle and 60-degree included countersink angle are ground to standard tolerances. Cobalt construction provides improved heat and wear resistance compared to standard HSS, making it suitable for harder workpiece materials and higher-cycle production environments. The bright polished finish leaves the cutting geometry uncoated for direct metal-to-metal contact.\u003c\/p\u003e\u003cp\u003eThis combination drill countersink is used in metalworking applications where a center hole and chamfer are required in one pass. Typical applications include lathe center preparation, pre-spotting for twist drills, and chamfering fastener clearance holes. The plain cutting edge style and double-end configuration make it a practical choice for general machine shop use, production floors, and toolroom work on steel, stainless, cast iron, and similar ferrous materials. The long overall length accommodates setups with limited reach from the spindle face.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt tool material for improved heat resistance and longer tool life in hard materials\u003c\/li\u003e\n\u003cli\u003e118-degree drill point angle with 60-degree included countersink angle in a single tool\u003c\/li\u003e\n\u003cli\u003e3\/16 inch body diameter with 5\/64 inch drill point diameter\u003c\/li\u003e\n\u003cli\u003e6 inch overall length — classified as long-length for extended-reach applications\u003c\/li\u003e\n\u003cli\u003eDouble-end design maximizes tool longevity\u003c\/li\u003e\n\u003cli\u003eBright polished finish with plain cutting edge style\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard size 2 combo drill countersink compatible with drill presses, lathes, milling machines, and CNC machining centers that accept straight-shank tooling in the appropriate collet or chuck.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is de-energized before loading or removing the tool from the chuck or collet. Secure the workpiece firmly before beginning the cut, and apply appropriate cutting fluid for the workpiece material to maintain tool life. Do not exceed the recommended RPM range for the tool diameter and material combination.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Size\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody Diameter\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Diameter\u003c\/strong\u003e: 5\/64 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 5\/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: 6 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\u003eTapered\u003c\/strong\u003e: No\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-81186020600\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51732675461426,"sku":"H-81186020600","price":109.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6a3aecc9ddda96cd68aced04ef8941ad.jpg?v=1788745622","url":"https:\/\/voomisupply.com\/products\/hertel-h-81186020600-combo-drill-countersink-size-2-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}