{"product_id":"klein-tools-ktsb11-step-drill-bit-7-8-to-1-1-8-in-durable-clean","title":"Klein Tools KTSB11 Step Drill Bit 7\/8 to 1-1\/8 in - Durable, Clean","description":"\u003cp\u003eIn this review the Klein Tools KTSB11 Step Drill Bit is evaluated for tradespeople and DIYers who need accurate, clean large-hole drilling through sheet materials. The bottom line: this double-fluted step bit stands out for its clean cuts and secure 3\/8-in hex shank that resists slipping, making it a practical choice when stepping up to holes between 7\/8 and 1-1\/8 in. It is best for users who value clear laser-etched size markings and a durable aluminum titanium nitride coating that extends bit life compared with traditional black oxide finishes.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum titanium nitride coating:\u003c\/strong\u003e Provides up to 10 times greater durability than black oxide, extending useful life under frequent use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-fluted design:\u003c\/strong\u003e Two straight flutes remove chips efficiently and produce cleaner cuts in metal and other materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/8-in hex shank:\u003c\/strong\u003e Thick hex shank prevents rounding in the drill chuck and delivers a positive, secure grip during heavy work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser-etched markings:\u003c\/strong\u003e High-visibility markings identify primary hole sizes quickly so the operator can stop at the exact diameter needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-walking drill tip:\u003c\/strong\u003e Fast-starting tip reduces wandering at startup, improving hole placement and finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile material compatibility:\u003c\/strong\u003e Suitable for steel up to 16 gauge, wood, plastic and aluminum for multipurpose shop or jobsite use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis step drill bit is aimed at electricians, HVAC installers, metal fabricators and handy homeowners who need to punch 7\/8 to 1-1\/8 in holes in thin metal, studs and common nonferrous materials. The secure hex shank and clean chip evacuation make it a good fit for corded drills and impact drivers when paired with an appropriate chuck.\u003c\/p\u003e\n\u003cp\u003eUsers who require very long-life heavy production tooling or who routinely drill thicker plate beyond 16 gauge should consider purpose-built annular cutters or hole saws instead. Also, if multiple, smaller size ranges are needed, a multi-step set might be more flexible than a single two-size bit.\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 coating greatly increases expected life compared with standard black oxide bits.\u003c\/li\u003e\n\u003cli\u003eDouble flutes deliver cleaner cuts and better chip removal for neater holes in metal.\u003c\/li\u003e\n\u003cli\u003eLaser-etched size markings and a non-walking tip improve accuracy and usability.\u003c\/li\u003e\n\u003cli\u003eThick 3\/8-in hex shank resists slipping and rounding in the chuck.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome users report mixed long-term durability of the tip under heavy use, so performance can vary with application and technique.\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\u003eKTSB11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole sizes\u003c\/td\u003e\n\u003ctd\u003e7\/8 in to 1-1\/8 in (22.2 to 28.6 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank\u003c\/td\u003e\n\u003ctd\u003e3\/8-in hex shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlutes\u003c\/td\u003e\n\u003ctd\u003eStraight double flutes\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\u003eSuitable materials\u003c\/td\u003e\n\u003ctd\u003eSteel up to 16 gauge, wood, plastic, aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe KTSB11 is a practical single-bit solution for professionals and serious DIYers who need reliable, clean drilling for 7\/8 to 1-1\/8 in holes. Its durable coating, clear markings and secure hex shank make it a good value for occasional to regular use; those needing industrial-scale longevity or thicker material cutting should match the tool choice to their workload.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan this bit be used on stainless steel?\u003c\/strong\u003e\u003cbr\u003eIt will cut stainless and sheet metal, but performance depends on alloy and thickness; use moderate speed and steady feed for best life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit in an impact driver?\u003c\/strong\u003e\u003cbr\u003eThe 3\/8-in hex shank is compatible with many impact drivers, though a firm chuck or adapter is recommended for heavy loads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I know which step to stop at?\u003c\/strong\u003e\u003cbr\u003eThe laser-etched markings on primary sizes are designed to be high-visibility so you can stop drilling at the exact diameter you need.\u003c\/p\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":48205667336411,"sku":"B0171X0NB4","price":49.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41XRaSMqq1L._AC_SL1000.jpg?v=1770263221","url":"https:\/\/gearmusthave.com\/products\/klein-tools-ktsb11-step-drill-bit-7-8-to-1-1-8-in-durable-clean","provider":"GearMustHave","version":"1.0","type":"link"}