{"product_id":"foredom-a-8005-primo-cobalt-steel-step-drill-0-5-mm","title":"Foredom A-8005 Primo® Cobalt Steel Step Drill – 0.5 mm","description":"\u003cdiv class=\"relative basis-auto flex-col -mb-(--composer-overlap-px) pb-(--composer-overlap-px) [--composer-overlap-px:28px] grow flex\"\u003e\n\u003cdiv class=\"flex flex-col text-sm\"\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eForedom A-8005 Primo® Cobalt Steel Step Drill\u003c\/strong\u003e is a premium precision drill bit designed for creating accurate, clean holes in jewelry, metalworking, and other fine fabrication applications. Manufactured from \u003cstrong\u003esolid cobalt steel\u003c\/strong\u003e, this step drill offers exceptional durability and can last up to \u003cstrong\u003e15 times longer than standard high-speed steel (HSS) drill bits\u003c\/strong\u003e, making it an excellent choice for professionals and serious hobbyists. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFeaturing a \u003cstrong\u003e0.5 mm head diameter\u003c\/strong\u003e and a \u003cstrong\u003e10 mm cutting length\u003c\/strong\u003e, the A-8005 delivers precise drilling in precious metals, brass, copper, aluminum, mild steel, and stainless steel when used with the proper lubricant and recommended speeds. Its \u003cstrong\u003e3\/32\" (2.35 mm) shank\u003c\/strong\u003e fits most Foredom handpieces and other compatible rotary tools, making it ideal for jewelry making, model building, electronics, and precision fabrication. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolid \u003cstrong\u003ecobalt steel\u003c\/strong\u003e construction for exceptional durability\u003c\/li\u003e\n\u003cli\u003eLasts up to \u003cstrong\u003e15 times longer\u003c\/strong\u003e than conventional high-speed steel drill bits\u003c\/li\u003e\n\u003cli\u003ePrecision \u003cstrong\u003e0.5 mm\u003c\/strong\u003e diameter for fine, accurate holes\u003c\/li\u003e\n\u003cli\u003e10 mm cutting length provides excellent drilling depth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/32\" (2.35 mm) shank\u003c\/strong\u003e fits most Foredom and compatible rotary handpieces\u003c\/li\u003e\n\u003cli\u003eSuitable for drilling precious metals, brass, copper, aluminum, mild steel, and stainless steel\u003c\/li\u003e\n\u003cli\u003eIdeal for jewelry making, metalworking, model making, and precision fabrication\u003c\/li\u003e\n\u003cli\u003eBest performance achieved when used with cutting lubricant and recommended drilling speeds. \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Foredom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e A-8005\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Primo®\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Cobalt Steel Step Drill\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter:\u003c\/strong\u003e 0.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Length:\u003c\/strong\u003e 10 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter:\u003c\/strong\u003e 3\/32\" (2.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Solid Cobalt Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Speed:\u003c\/strong\u003e 500–10,000 RPM (depending on material)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Precision drilling for jewelry, metalworking, electronics, and fabrication. \u003cspan class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"thread-bottom-container\" class=\"sticky bottom-0 z-10 group\/thread-bottom-container relative isolate w-full basis-auto has-data-has-thread-error:pt-2 has-data-has-thread-error:[box-shadow:var(--sharp-edge-bottom-shadow)] md:border-transparent md:pt-0 dark:border-white\/20 md:dark:border-transparent print:hidden content-fade single-line flex flex-col\"\u003e\n\u003cdiv class=\"relative mx-auto h-0\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"thread-bottom\"\u003e\n\u003cdiv class=\"text-base mx-auto [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 mb-[var(--thread-component-gap,1rem)]\"\u003e\n\u003cdiv class=\"w-full\"\u003e\n\u003cdiv class=\"pointer-events-auto relative z-1 flex h-(--composer-container-height,100%) max-w-full flex-(--composer-container-flex,1) flex-col\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Micro-Tools","offers":[{"title":"Default Title","offer_id":47757849690348,"sku":"FOR-A-8005","price":9.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1769\/3719\/files\/for-a-8005.jpg?v=1781721530","url":"https:\/\/www.micro-tools.com\/products\/foredom-a-8005-primo-cobalt-steel-step-drill-0-5-mm","provider":"Micro-Tools","version":"1.0","type":"link"}