{"product_id":"valyriantool-15pcs-m35-cobalt-left-hand-drill-bits-set-remove-broken-stubs-stubborn-fasteners-1-16-3-8","title":"VALYRIANTOOL 15PCS M35 Cobalt Left-Hand Drill Bits Set – Remove Broken Stubs \u0026 Stubborn Fasteners (1\/16\"–3\/8\")","description":"\u003ch2\u003eVALYRIANTOOL COBALT LEFT HAND DRILL BIT SET\u003c\/h2\u003e\u003cp\u003eMeet a durable reverse-drilling solution designed to tackle damaged fasteners with confidence. The 15-piece set uses M35 cobalt steel for extended wear resistance, helping you work through stubborn bolts and screws while preserving surrounding material. This isn’t just about drilling; it’s about precision, predictability, and a smoother repair process.\u003c\/p\u003e\u003ch3\u003eWhy choose cobalt left-hand bits\u003c\/h3\u003e\u003cp\u003eLeft-handed geometry paired with a 135-degree split point helps the bit self-center and begin cutting quickly, often reducing the number of passes needed. The result can feel like a cleaner start, even on scratched or rusty surfaces.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIncreased durability for repeated use in tough jobs\u003c\/li\u003e\n\u003cli\u003eFast, self-centering cutting minimizes wandering\u003c\/li\u003e\n\u003cli\u003eReverse drilling helps back out fasteners with less damage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat’s included\u003c\/h3\u003e\u003cp\u003eThe kit covers a wide range of imperial sizes from 1\/16\" to 3\/8\", with several duplicates for common tasks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1\/16\" (x2)\u003c\/li\u003e\n\u003cli\u003e5\/64\"\u003c\/li\u003e\n\u003cli\u003e3\/32\"\u003c\/li\u003e\n\u003cli\u003e7\/64\"\u003c\/li\u003e\n\u003cli\u003e1\/8\" (x2)\u003c\/li\u003e\n\u003cli\u003e9\/64\"\u003c\/li\u003e\n\u003cli\u003e5\/32\"\u003c\/li\u003e\n\u003cli\u003e3\/16\" (x2)\u003c\/li\u003e\n\u003cli\u003e7\/32\"\u003c\/li\u003e\n\u003cli\u003e1\/4\"\u003c\/li\u003e\n\u003cli\u003e5\/16\"\u003c\/li\u003e\n\u003cli\u003e3\/8\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cp\u003e1. Grind or flatten the head of the damaged bolt or screw. 2. Center-mark the spot with a punch and light hammer. 3. Drill in reverse with the bits, using light oil. 4. Often the fastener backs out before the hole finishes. 5. If needed, the hole can serve as a pilot for a screw extractor.\u003c\/p\u003e\u003ch3\u003eReal-world scenarios\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAutomotive or machinery repairs where bolts seize\u003c\/li\u003e\n\u003cli\u003eMetal panels with corroded or stuck fasteners\u003c\/li\u003e\n\u003cli\u003eProjects requiring careful material preservation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackaging and storage\u003c\/h3\u003e\u003cp\u003ePacked in a sturdy plastic box imprinted with sizes for quick selection and organized storage, ready for toolbox integration.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: Results can vary based on material, fastener condition, and drilling technique. This set offers a robust option for reverse drilling and pilot-hole prep, expanding your repair opportunities without overpromising outcomes.\u003c\/em\u003e\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What tasks is the VALYRIANTOOL 15PCS M35 cobalt left-hand drill bits set ideal for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed to remove damaged stubs, bolts, and screws using reverse drilling and self-centering tips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which metals can these bits drill through?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Suitable for stainless steel, cast iron, titanium, bronze, aluminum, and other hardened metals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"VALYRIANTOOL","offers":[{"title":"Default Title","offer_id":53093660459119,"sku":"B0FFCSQ2YQ","price":35.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0598\/3087\/files\/valyriantool-15pcs-m35-cobalt-left-hand-drill-bits-set-box.jpg?v=1778776034","url":"https:\/\/taskholt.com\/products\/valyriantool-15pcs-m35-cobalt-left-hand-drill-bits-set-remove-broken-stubs-stubborn-fasteners-1-16-3-8","provider":"TaskHolt","version":"1.0","type":"link"}