{"product_id":"klein-tools-ktsb15-step-drill-bit-7-8-to-1-3-8-in-durable-clean","title":"Klein Tools KTSB15 Step Drill Bit 7\/8 to 1-3\/8 in - Durable, Clean","description":"\u003cp\u003eOur review of the Klein Tools KTSB15 step drill bit finds it best suited for electricians, metalworkers and hobbyists who need reliable, clean holes in sheet metal and electrical boxes; the single biggest reason to buy is its combination of a durable aluminum titanium nitride coating and a 3\/8-in hex shank that delivers long life and a secure grip under load. The bit's laser-etched step markings and non-walking tip make accurate starts and repeatable holes straightforward, so a tradesperson can depend on it for install work and quick sheet metal modifications.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable coating:\u003c\/strong\u003e The aluminum titanium nitride finish offers far greater wear resistance than black oxide, extending useful bit life under repeated cuts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble flute design:\u003c\/strong\u003e Two straight flutes eject chips efficiently for cleaner cuts and less burring when drilling thin metal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure hex shank:\u003c\/strong\u003e The 3\/8-in hex shank resists rounding in the chuck and provides a positive grip for higher torque and controlled drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-etched markings:\u003c\/strong\u003e High-visibility step markings and targets let the user identify primary hole sizes quickly for precise step selection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-walking tip:\u003c\/strong\u003e The fast-starting tip reduces walking so pilots start accurately without a center punch in many cases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple hole range:\u003c\/strong\u003e One bit covers three hole sizes from 7\/8 in to 1-3\/8 in, reducing tool changes for common panel and box openings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eElectricians and metal fabricators who frequently open and modify electrical boxes, panels or thin-gauge sheet metal will appreciate this step bit; its clean-cutting double flutes and durable coating make it a practical choice for worksite conditions where longevity matters. The clear laser-etched size markings also help installers hit the right hole quickly during repetitive tasks.\u003c\/p\u003e\n\u003cp\u003eThose working primarily in thick structural steel, masonry, or who need many incremental sizes beyond the three primary steps should look elsewhere, since this bit is optimized for sheet metal and the specified 7\/8 in to 1-3\/8 in range rather than heavy-duty or precision hole saw applications.\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 aluminum titanium nitride coating gives noticeably longer life than standard black oxide bits.\u003c\/li\u003e\n\u003cli\u003eDouble flutes provide better chip removal and cleaner hole edges in thin metal.\u003c\/li\u003e\n\u003cli\u003e3\/8-in hex shank prevents rounding and keeps the bit stable in a drill chuck or impact driver adapter.\u003c\/li\u003e\n\u003cli\u003eLaser-etched markings and non-walking tip improve accuracy and speed on the job.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot intended for heavy structural steel or applications needing many incremental sizes beyond the three steps.\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\u003eKLEIN TOOLS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eKTSB15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep range\u003c\/td\u003e\n\u003ctd\u003e7\/8 in to 1-3\/8 in (22.2 to 34.9 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank\u003c\/td\u003e\n\u003ctd\u003e3\/8-in hex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlutes\u003c\/td\u003e\n\u003ctd\u003eStraight double fluted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating\u003c\/td\u003e\n\u003ctd\u003eAluminum titanium nitride\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarkings\u003c\/td\u003e\n\u003ctd\u003eLaser-etched step sizes and targets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KTSB15 is a practical, professional-grade step bit for electrical and sheet-metal work, offering long life from its aluminum titanium nitride coating and reliable performance thanks to double flutes, a secure 3\/8-in hex shank and clear step markings; it represents good value for those who need quick, clean holes in thin metal but is not a substitute for heavy-duty drilling in thick structural materials.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat hole sizes does this step bit cover?\u003c\/strong\u003e\u003cbr\u003eThe bit covers three primary hole sizes from 7\/8 in to 1-3\/8 in (22.2 to 34.9 mm) with laser-etched indicators for the main steps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this bit start without walking?\u003c\/strong\u003e\u003cbr\u003eYes; the fast-starting, non-walking drill tip is designed to reduce walking and help start holes accurately on thin metal and box openings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the shank durable for heavy use?\u003c\/strong\u003e\u003cbr\u003eYes; the thick 3\/8-in hex shank prevents rounding in the chuck and provides a positive grip for repeated trades use.\u003c\/p\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":48618702569691,"sku":"B0171X0S0A","price":59.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51LeOxKiGIL._AC_SL1000.jpg?v=1778498455","url":"https:\/\/gearmusthave.com\/products\/klein-tools-ktsb15-step-drill-bit-7-8-to-1-3-8-in-durable-clean","provider":"GearMustHave","version":"1.0","type":"link"}