{"product_id":"cobalt-drill-bit-set-115-pcs-durable-m35-bits-in-metal-case","title":"Cobalt Drill Bit Set 115 PCS - Durable M35 Bits in Metal Case","description":"\u003cp\u003eOur review of the Cobalt Drill Bit Set 115 PCS finds it best suited for the serious DIYer, professional tradesperson, or anyone who regularly drills into hard metals. The single biggest reason to buy is the set's broad size coverage combined with M35 cobalt construction, which delivers noticeably better wear resistance when tackling stainless steel, cast iron, and other hard alloys. The review highlights the practical metal index storage box and the 135-degree split point geometry that reduces walking, making this kit a dependable everyday assortment.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e115-piece assortment:\u003c\/strong\u003e Includes 29 fractional bits, 26 letter sizes, and 60 wire sizes so users rarely need an extra bit for standard tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM35 cobalt construction:\u003c\/strong\u003e Contains 5% cobalt alloy for improved hardness and wear resistance when drilling stainless steel and high-temperature alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e135-degree split point:\u003c\/strong\u003e The self-centering tip minimizes walking and speeds up hole starts in metal and wood.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully ground twist design:\u003c\/strong\u003e Reduces friction for cooler drilling and longer bit life during extended use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRound straight shank:\u003c\/strong\u003e Compatible with standard chucks and easy to secure in most drills and drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal index storage box:\u003c\/strong\u003e An ergonomic, portable case with a clip for organized carrying and quick bit selection on the job.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis set is aimed at professionals and committed hobbyists who need a one-stop kit that covers fractional, letter, and wire gauges for everyday drilling into metal, wood, and plastics. The M35 cobalt alloy and split point geometry make it especially useful for mechanics, metal fabricators, and contractors who frequently encounter stainless steel or high-strength alloys.\u003c\/p\u003e\n\u003cp\u003eLess technical users who only drill occasional holes in soft wood or soft metals might find many of these specialized sizes unnecessary and could consider a smaller, simpler set. Also, if absolute ultimate toughness for industrial, high-volume production is required, users should compare with dedicated industrial jobber sets designed for heavy continuous duty.\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\u003eComprehensive size range that reduces the need to buy individual bits later.\u003c\/li\u003e\n\u003cli\u003eGood cutting performance on hard metals thanks to 5% cobalt alloy construction.\u003c\/li\u003e\n\u003cli\u003eStorage box keeps bits organized and portable with an attached clip for on-belt carry.\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 on durability is mixed; some users report breakage with heavy use while others find them long-lasting.\u003c\/li\u003e\n\u003cli\u003eCase fit and internal layout have mixed reviews, so organization experience may vary by unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet contents\u003c\/td\u003e\n\u003ctd\u003e115 pcs (29 fractional, 26 letter, 60 wire)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFractional range\u003c\/td\u003e\n\u003ctd\u003e1\/16 to 1\/2 in in 1\/64 in increments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLetter sizes\u003c\/td\u003e\n\u003ctd\u003eA to Z\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire sizes\u003c\/td\u003e\n\u003ctd\u003e#1 to #60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eM35 high speed steel with 5% cobalt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTip geometry\u003c\/td\u003e\n\u003ctd\u003e135-degree split point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage\u003c\/td\u003e\n\u003ctd\u003eMetal index storage box with clip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Cobalt Drill Bit Set 115 PCS is a well-rounded, cost-effective kit for professionals and avid DIYers who need reliable performance on stainless steel and other tough materials. Its extensive size selection and cobalt alloy construction make it a strong value for general workshop and on-site use, though buyers should note some variability in case fit and long-term durability reported by users.\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 M35 cobalt composition and 135-degree split point are intended to cut stainless steel and other hard alloys effectively.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include a storage case?\u003c\/strong\u003e\u003cbr\u003eYes, the set ships in a metal index storage box with a built-in clip for easy carrying and organization.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these fit a standard drill chuck?\u003c\/strong\u003e\u003cbr\u003eYes, the bits have round straight shanks compatible with most standard drill chucks and drivers.\u003c\/p\u003e","brand":"CaRoller","offers":[{"title":"Default Title","offer_id":48633855770843,"sku":"B0C5ZLXD8D","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/711B2I_u2KL._SL1500.jpg?v=1778442098","url":"https:\/\/gearmusthave.com\/products\/cobalt-drill-bit-set-115-pcs-durable-m35-bits-in-metal-case","provider":"GearMustHave","version":"1.0","type":"link"}