{"product_id":"drill-america-p-cobalt-heavy-duty-drill-bit-pack-of-6-tough-metal","title":"Drill America P Cobalt Heavy Duty Drill Bit Pack of 6 - Tough Metal","description":"\u003cp\u003eIn this review of the Drill America P Cobalt Heavy Duty Drill Bit pack of 6, the bottom line is simple: these are worksite-ready jobber length bits built for cutting hard metals where standard high-speed steel fails. The reviewer recommends them for fabricators, machinists, and maintenance pros who need reliable cobalt performance and longer tool life when tackling stainless steel, inconel, or titanium. The single biggest reason to buy is the cobalt construction that lets these bits run hotter and last noticeably longer on tough alloys compared with typical HSS bits.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCobalt steel construction:\u003c\/strong\u003e Provides higher red hardness so the bits handle elevated cutting temperatures and last longer in hard alloys.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eGold oxide finish:\u003c\/strong\u003e A thin oxide surface aids identification without changing cutting performance significantly compared with uncoated bits.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRound shanks:\u003c\/strong\u003e Work with a wide variety of chucks, collets, and drill presses for easy toolholding on the shop floor.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRight-hand spiral flute:\u003c\/strong\u003e Evacuates chips up and out of the hole to reduce clogging when drilling deep or gummy materials.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eManufactured to NAS 907:\u003c\/strong\u003e Produced to an aerospace-related standard, indicating consistent geometry and quality for critical applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe pack is best for professional tradespeople and serious hobbyists who regularly drill stainless steel, nickel alloys, or other high tensile materials and need a cost-effective cobalt option. Its jobber length and robust cutting edge make it useful for metalworking shops, maintenance crews, and DIYers tackling corrosion-resistant fastener removal or fabrication projects.\u003c\/p\u003e\n\u003cp\u003eThose who primarily drill soft materials like wood or plastics, or who require metric sizes, may prefer less expensive HSS bits or a different specialty set; this pack is targeted at tougher metal work where the \u003cstrong\u003ecobalt advantage\u003c\/strong\u003e matters.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eDurable cutting life on hard metals thanks to cobalt steel that sustains higher speeds.\u003c\/li\u003e\n \u003cli\u003eConsistent performance and sharp initial edges produce clean holes with less walking.\u003c\/li\u003e\n \u003cli\u003eRound shanks and standard jobber length make the bits broadly compatible with common toolholders.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eThe gold oxide is primarily identification rather than a performance coating, so users wanting advanced lubricious coatings should look elsewhere.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eDrill America\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eD\/ACO\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCobalt steel (heat resistant)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eGold oxide thin surface treatment\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eShank type\u003c\/td\u003e\n\u003ctd\u003eRound shank\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003eJobber length\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eManufacturing standard\u003c\/td\u003e\n\u003ctd\u003eNational Aerospace standard 907\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThese Drill America cobalt jobber bits are a practical choice for anyone who needs dependable drilling in stainless and other high-strength alloys; they deliver greater heat resistance and longer life than standard HSS at a competitive price. For metalworkers seeking solid performance without specialty coatings, this pack represents strong value and consistent results on tough materials.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these bits suitable for stainless steel?\u003c\/strong\u003e\u003cbr\u003eYes, the cobalt steel and higher red hardness make them well suited for stainless and other high tensile materials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the gold oxide coating improve cutting life?\u003c\/strong\u003e\u003cbr\u003eThe gold oxide is a thin identification finish and does not significantly change cutting life compared with uncoated cobalt; the cobalt alloy itself provides the durability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these bits fit common chucks?\u003c\/strong\u003e\u003cbr\u003eYes, the round shanks are compatible with standard drill chucks and many collet systems used on shop drills.\u003c\/p\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":48242953060571,"sku":"B00FX6ZVF0","price":39.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71xcTcJaimL._SL1500_c31c664a-49c4-40e9-9bee-703e1fdb1917.jpg?v=1771058498","url":"https:\/\/gearmusthave.com\/products\/drill-america-p-cobalt-heavy-duty-drill-bit-pack-of-6-tough-metal","provider":"GearMustHave","version":"1.0","type":"link"}