{"product_id":"four-spiral-flute-m35-step-drill-bit-set-1-4in-1-1-8in-15-sizes","title":"Four Spiral Flute M35 Step Drill Bit Set 1\/4in - 1-1\/8in (15 Sizes)","description":"\u003cp\u003eIn this review the Four Spiral Flute M35 Step Drill Bit Set is presented as a solid choice for tradespeople and serious DIYers who need one bit that covers many hole sizes. The set's biggest selling point is its \u003cstrong\u003eM35 cobalt\u003c\/strong\u003e construction and four spiral flute design, which combine to cut through stainless steel, aluminum, wood and plastic more smoothly and with longer life than ordinary step bits. For anyone who regularly drills thin sheet metal or wants to avoid swapping many twist bits, this set saves time while delivering consistent hole quality.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM35 cobalt steel:\u003c\/strong\u003e Provides higher wear resistance and pressure tolerance for longer life when drilling hard metals like stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour spiral grooves:\u003c\/strong\u003e The four cutting blade design clears chips quickly for smoother cutting and faster drilling without clogging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTiAlN coating:\u003c\/strong\u003e Industrial grade coating increases hardness and heat resistance so bits stay sharper under heavy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide size range:\u003c\/strong\u003e The single step bit covers 15 sizes from 1\/4in to 1-1\/8in so you can make multiple hole diameters without changing bits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/8in shank compatibility:\u003c\/strong\u003e The hexagonal shank fits common cordless drills and improves grip during high-torque drilling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe set is ideal for metal fabricators, HVAC technicians, electricians and automotive hobbyists who need to punch a variety of hole sizes through thin sheet steel, aluminum and plastic without swapping bits. Its M35 cobalt composition and TiAlN coating make it especially useful when working with stainless steel where ordinary bits dull quickly.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for users who frequently drill thick plate or require precision reamed holes; the step geometry is optimized for thin material and fast size changes rather than heavy stock removal or ultra-precise fit tolerances.\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\u003eSharp, durable cutting edges due to M35 cobalt steel and TiAlN coating that resist wear.\u003c\/li\u003e\n\u003cli\u003eFaster, smoother cuts and better chip evacuation from the four spiral flute design.\u003c\/li\u003e\n\u003cli\u003eConvenient size range that replaces multiple individual bits and speeds workflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStep bits are best for thinner materials; performance drops when used on very thick metal.\u003c\/li\u003e\n\u003cli\u003eSingle-bit design limits use where extremely tight hole tolerances are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eM35 cobalt high speed steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eTiAlN industrial coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank\u003c\/td\u003e\n\u003ctd\u003e3\/8in hexagonal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize range\u003c\/td\u003e\n\u003ctd\u003e1\/4in to 1-1\/8in (15 sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutting design\u003c\/td\u003e\n\u003ctd\u003eFour spiral flutes with four cutting blades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible materials\u003c\/td\u003e\n\u003ctd\u003eStainless steel, aluminum, wood, plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eCustomer support with refund or replacement for broken hex shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Four Spiral Flute M35 Step Drill Bit Set is a practical, long-lasting option for anyone who drills varied hole sizes in thin metals and plastic. Its M35 cobalt build and TiAlN coating deliver noticeably better wear resistance and cutting consistency than standard step bits, making it a good value for professionals and dedicated DIY users who want fewer tool changes and cleaner holes.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan these bits drill stainless steel?\u003c\/strong\u003e\u003cbr\u003eYes, the M35 cobalt composition and four flute design are suited to stainless steel when used with proper speed and lubrication.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size range does one bit cover?\u003c\/strong\u003e\u003cbr\u003eThe step bit covers 15 incremental sizes from 1\/4in up to 1-1\/8in, allowing multiple hole diameters from a single tool.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the shank compatible with cordless drills?\u003c\/strong\u003e\u003cbr\u003eYes, the 3\/8in hex shank fits most cordless drills and helps prevent slipping in the chuck.\u003c\/p\u003e","brand":"BOYOUYS","offers":[{"title":"Default Title","offer_id":48616179597531,"sku":"B0D5QG7L6H","price":45.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71b80ikF_XL._SL1500.jpg?v=1778521653","url":"https:\/\/gearmusthave.com\/products\/four-spiral-flute-m35-step-drill-bit-set-1-4in-1-1-8in-15-sizes","provider":"GearMustHave","version":"1.0","type":"link"}