{"product_id":"115pcs-cobalt-drill-bit-set-1-16ft-1-2ft-complete-m35-jobber-kit","title":"115Pcs Cobalt Drill Bit Set (1\/16ft - 1\/2ft) - Complete M35 Jobber Kit","description":"\u003cp\u003eIn this review of the 115Pcs Cobalt Drill Bit Set the bottom line is simple: this kit is for hobbyists, home workshop owners, and tradespeople who need a broad range of durable drill sizes for metal and mixed materials. The set stands out because it combines an extensive size range-fractional, letter, and numbered bits-with M35 cobalt HSS construction and a metal index box for organized storage. For anyone drilling stainless steel, cast iron or hardened bolts, the main reason to buy is the material and tip geometry that deliver sharper cutting and better heat resistance than ordinary bits.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e115-piece range:\u003c\/strong\u003e Includes 29 fractional sizes, 26 letter sizes and 60 numbered sizes, offering near-universal coverage for workshop needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM35 cobalt construction:\u003c\/strong\u003e Hardened cobalt alloy provides improved wear resistance and maintains edge strength when drilling tougher metals like stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e135-degree point tip:\u003c\/strong\u003e Self-centering tip reduces walk-off and helps start holes cleanly in metal and thin materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJobber length twist design:\u003c\/strong\u003e The twist flutes remove chips efficiently for faster cutting and reduced binding during longer drills.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal index storage box:\u003c\/strong\u003e The included holder with size index keeps bits organized and easy to find, saving time on job sites and in the garage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe kit suits DIYers, mechanics and metalworkers who want a single set that covers fractional, letter and numbered sizing for varied projects. It is particularly useful for those who work with stainless steel, cast iron and other tougher metals because the M35 cobalt formulation holds up better under heat and friction than standard HSS.\u003c\/p\u003e\u003cp\u003eThose who only occasionally drill soft wood or plastics and want a few basic sizes might find this set more comprehensive than necessary; similarly, users seeking ultra-long drill lengths or specialized coatings should consider dedicated specialty bits instead.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eExtensive size selection eliminates the need to buy multiple separate sets.\u003c\/li\u003e\n\u003cli\u003eM35 cobalt bits deliver sharpness and durability for cutting hardened metals.\u003c\/li\u003e\n\u003cli\u003e135-degree point and twist design aid in faster cutting and reduced bit walking.\u003c\/li\u003e\n\u003cli\u003eSturdy metal index box keeps bits organized and labeled for quick selection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eSome customers reported mixed durability on the smallest bits, which is a realistic limitation for tiny diameters under heavy use.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePieces included\u003c\/td\u003e\n\u003ctd\u003e115 pieces (fractional, letter, numbered)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFractional sizes\u003c\/td\u003e\n\u003ctd\u003e1\/16' to 1\/2' in 1\/64' increments (29 pcs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLetter sizes\u003c\/td\u003e\n\u003ctd\u003eA to Z (26 pcs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumbered sizes\u003c\/td\u003e\n\u003ctd\u003e#1 to #60 (60 pcs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eM35 cobalt high speed steel (HSS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoint angle\u003c\/td\u003e\n\u003ctd\u003e135 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage\u003c\/td\u003e\n\u003ctd\u003eMetal index storage box with size index\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe 115Pcs Cobalt Drill Bit Set is a strong value for users who need a comprehensive collection of durable bits for metal and mixed-material work. The M35 cobalt build and 135-degree tip give confident cutting in stainless and cast iron, while the organized metal case keeps the wide size range usable. Buy this set if you want one kit to handle most shop and repair tasks without constant bit changes.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCan these bits drill stainless steel?\u003c\/strong\u003e\u003cbr\u003eYes, the M35 cobalt composition and 135-degree tip make them suitable for stainless steel and other harder metals when used with correct speed and lubrication.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the set include a storage solution?\u003c\/strong\u003e\u003cbr\u003eYes, it ships with a metal index box that contains labeled slots for fractional, letter and numbered bits for easy organization.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre the smallest sizes durable?\u003c\/strong\u003e\u003cbr\u003eSmall diameter bits can be fragile under heavy misuse; customers report generally good sharpness but mixed durability on the very smallest sizes, so handle those with care.\u003c\/p\u003e","brand":"YOHANSEN","offers":[{"title":"Default Title","offer_id":48610933473499,"sku":"B0DBH66YJP","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81AS_d_rb6L._SL1500.jpg?v=1778407180","url":"https:\/\/gearmusthave.com\/products\/115pcs-cobalt-drill-bit-set-1-16ft-1-2ft-complete-m35-jobber-kit","provider":"GearMustHave","version":"1.0","type":"link"}