{"product_id":"29-32-in-reduced-shank-cobalt-drill-bit-with-1-2-in-shank-durable","title":"29\/32 in Reduced Shank Cobalt Drill Bit with 1\/2 in Shank - Durable","description":"\u003cp\u003eIn this review the Drill America 29\/32 in reduced shank cobalt drill bit is assessed for machinists and tradespeople who need a reliable option for drilling harder metals. The bottom line: this bit is best for users who want a heat resistant, precision ground tool that expands the capacity of a portable drill chuck, and its strongest selling point is the cobalt steel composition and 135 degree split point that aid cutting in tougher alloys. It is presented here as a practical tool rather than a miracle fix for every drilling problem.\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 elevated heat resistance and maintains cutting edge when working with stainless steel and nickel alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e135 split point:\u003c\/strong\u003e reduces walking at start and makes it easier to start holes cleanly in metal without excessive pilot drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced shank with 1\/2 in round shank:\u003c\/strong\u003e allows use in portable drill chucks that cannot accept the full body diameter while fitting a wide variety of toolholding systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGold oxide surface treatment:\u003c\/strong\u003e offers a thin protective layer that identifies the tool and performs similarly to uncoated bits while resisting minor corrosion during storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral flutes with right-hand cut:\u003c\/strong\u003e evacuate chips up and out of the hole when run conventionally, helping to reduce clogging on deeper cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufactured to NA standard 907:\u003c\/strong\u003e indicates consistent machining tolerances and concentricity between shank and body for steadier running.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis bit is suited to workshop users, mechanics, and fabricators who regularly drill medium to high tensile strength metals and need a heat resistant option that will start accurately because of the split point. It is also a good fit when a portable drill must be used but the job calls for a larger diameter than the chuck normally accepts.\u003c\/p\u003e\n\u003cp\u003eIt is not the best choice for hobbyists who only drill soft materials where a standard high-speed steel bit suffices, nor for operations requiring a coated performance edge beyond a thin oxide treatment; some users also report mixed results on durability, so those needing guaranteed long-life in production environments should consider hardened or specialty coated options.\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\u003eHeat resistant cobalt alloy improves cutting in stainless and harder alloys compared with typical HSS bits.\u003c\/li\u003e\n\u003cli\u003ePrecision ground for good concentricity, which helps steadier drilling and less wobble.\u003c\/li\u003e\n\u003cli\u003eReduced shank design expands compatibility with smaller chucks while keeping a 1\/2 in shank for robust holding.\u003c\/li\u003e\n\u003cli\u003e135 split point cuts on contact and reduces walking, improving accuracy on first contact.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCustomer feedback is mixed on durability and sharpness; some report early dulling or breakage under heavy use.\u003c\/li\u003e\n\u003cli\u003eGold oxide is a thin treatment and does not provide the enhanced wear resistance of thicker modern coatings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e29\/32 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank\u003c\/td\u003e\n\u003ctd\u003e1\/2 in round\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\u003ePoint style\u003c\/td\u003e\n\u003ctd\u003e135 degree heavy duty split point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface treatment\u003c\/td\u003e\n\u003ctd\u003eGold oxide thin oxide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlute\u003c\/td\u003e\n\u003ctd\u003eSpiral fluted, right-hand cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eManufactured to National Aerospace standard 907\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Drill America 29\/32 in reduced shank cobalt bit is a practical choice for tradespeople and fabricators who need a heat resistant, precision ground bit that fits smaller chucks. It offers good value for jobs involving stainless and similar alloys, but buyers should be realistic about wear under heavy production use and consider harder coatings if maximum life is critical.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this bit work in a portable drill chuck?\u003c\/strong\u003e\u003cbr\u003eYes; the reduced body with a 1\/2 in round shank is designed to expand the size range of a portable drill chuck.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the gold oxide a wear-resistant coating?\u003c\/strong\u003e\u003cbr\u003eThe gold oxide is a thin oxide treatment largely for identification and minor corrosion resistance and does not provide the wear protection of thicker specialty coatings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it drill stainless steel?\u003c\/strong\u003e\u003cbr\u003eYes; the cobalt steel composition and 135 degree split point make it better suited for stainless and higher tensile metals than standard HSS bits.\u003c\/p\u003e","brand":"Drill America","offers":[{"title":"Default Title","offer_id":48670271275227,"sku":"B00FXHADEI","price":37.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51yVTVAB0zL._SL1500_0fcec511-f2d5-4a75-8366-902097bfff00.jpg?v=1778618738","url":"https:\/\/gearmusthave.com\/products\/29-32-in-reduced-shank-cobalt-drill-bit-with-1-2-in-shank-durable","provider":"GearMustHave","version":"1.0","type":"link"}