{"product_id":"klein-tools-qrst15-step-drill-bit-7-8-to-1-3-8-in-fast-durable-cuts","title":"Klein Tools QRST15 Step Drill Bit 7\/8 to 1-3\/8 in - Fast, Durable Cuts","description":"\u003cp\u003eOur review of the Klein Tools QRST15 step drill bit finds it best suited for tradespeople and serious DIYers who need a single bit that handles multiple hole sizes with clean results. The biggest reason to buy is the combination of the dual spiral flute design and the aluminum titanium nitride coating, which together deliver faster chip evacuation and a longer life than typical black oxide bits. In everyday use it slips into an impact driver or drill via the quick-release 1\/4-in hex shank and punches out preset sizes without wandering, making repetitive metal and sheet tasks noticeably more efficient.\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 the durability of black oxide so the bit keeps cutting longer between replacements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual spiral flutes:\u003c\/strong\u003e Pull chips away quickly for faster cuts and reduced clogging when drilling thin steel or aluminum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpact rated hex shank:\u003c\/strong\u003e Works reliably in both impact drivers and standard drills with a secure quick-release 1\/4-in hex connection to prevent spinning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaser size markings:\u003c\/strong\u003e Clear preset size labels let users identify three hole sizes at a glance to speed repetitive work and reduce mistakes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast-starting tip:\u003c\/strong\u003e The tip design minimizes walking so holes start accurately without pilot holes on most sheet materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile material use:\u003c\/strong\u003e Suitable for steel up to 16 gauge, wood, plastic, and aluminum, making it a useful all-around step bit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Klein QRST15 is aimed at electricians, HVAC technicians, metalworkers and experienced DIYers who routinely drill multiple hole sizes in sheet metal, studs and light-gauge steel. Its quick-release hex shank and impact compatibility make it a practical choice for contractors who alternate between handheld drills and impact drivers on job sites.\u003c\/p\u003e\n\u003cp\u003eLess experienced users or those who only occasionally need large holes may prefer a simple hole saw or individual drill bits, and anyone drilling very thick steel beyond 16 gauge should choose a specialized bit designed for heavy plate work.\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 extends bit life compared with standard black oxide finishes.\u003c\/li\u003e\n\u003cli\u003eDual spiral flute geometry gives faster cuts and cleaner holes in sheet materials.\u003c\/li\u003e\n\u003cli\u003eSecure 1\/4-in quick-release hex shank prevents slipping in impact drivers and drills.\u003c\/li\u003e\n\u003cli\u003eLaser-marked preset sizes improve speed and reduce measuring errors 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\u003eSome users report mixed durability at the tip under heavy use, so longevity can vary by application.\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\u003eQRST15 step drill bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize range\u003c\/td\u003e\n\u003ctd\u003e7\/8 in to 1-3\/8 in (three preset sizes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShank\u003c\/td\u003e\n\u003ctd\u003e1\/4-in hex quick-release\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\u003eCompatible materials\u003c\/td\u003e\n\u003ctd\u003eSteel up to 16 gauge, wood, plastic, aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive type\u003c\/td\u003e\n\u003ctd\u003eImpact rated for drivers and standard drills\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe QRST15 step drill bit is a solid, cost-effective choice for professionals who need fast, repeatable holes in sheet metal and light-gauge materials. Its tougher A-TiN coating, spiral flute design and quick-release hex shank make it a practical workhorse for trades where speed and clean cuts matter, though users who subject bits to extreme abuse may see variable tip life.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this in an impact driver?\u003c\/strong\u003e\u003cbr\u003eYes, the bit is impact rated and the 1\/4-in hex quick-release shank is designed for secure use in impact drivers and drills.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat materials will it cut?\u003c\/strong\u003e\u003cbr\u003eIt is suitable for steel up to 16 gauge, wood, plastic and aluminum, and is optimized for thin sheet metal work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the sizes easy to read?\u003c\/strong\u003e\u003cbr\u003eYes, the three preset hole sizes have clear laser markings for quick identification during repetitive tasks.\u003c\/p\u003e","brand":"KLEIN TOOLS","offers":[{"title":"Default Title","offer_id":48682240966875,"sku":"B0CKY3CFZQ","price":59.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41L20HsB0rL._AC_SL1050.jpg?v=1778662214","url":"https:\/\/gearmusthave.com\/products\/klein-tools-qrst15-step-drill-bit-7-8-to-1-3-8-in-fast-durable-cuts","provider":"GearMustHave","version":"1.0","type":"link"}