{"product_id":"century-drill-tool-1-4-in-x-3-5-16-in-l-cobalt-steel-left-hand-drill-bit-straight-shank","title":"Century Drill \u0026 Tool 1\/4 in. X 3-5\/16 in. L Cobalt Steel Left Hand Drill Bit Straight Shank","description":"\u003cdiv\u003e\n\u003cp\u003ePower through hard metals with precision using the Century Drill \u0026amp; Tool 1\/4 in. x 3-5\/16 in. L cobalt steel left-hand drill bit with a straight shank. This single-carded bit is built for durability and versatile metalworking applications, delivering dependable performance when the going gets tough.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cobalt steel for enhanced hardness and heat resistance compared to standard high-speed steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Polished surface to reduce friction, promote smoother chip evacuation, and extend bit life\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSize \u0026amp; reach:\u003c\/strong\u003e 1\/4 in. drill size with a total length of 3-5\/16 in. and a flute length of 1-3\/4 in. for deeper holes and efficient chip clearance\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eShank:\u003c\/strong\u003e Straight shank for compatibility with most drill chucks and drill presses\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Left-hand (reverse-cutting) geometry designed for specialized tasks such as reverse drilling and fastener extraction\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Carded packaging for easy storage and single-piece convenience\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this cobalt left-hand drill bit stands out\u003c\/h2\u003e\n\u003cp\u003eUnlike standard HSS bits, this cobalt steel bit holds its edge under high heat, making it ideal for drilling through tough metals like steel, stainless, and cast iron. The polished finish helps minimize built-up heat and reduces resistance, so you can maintain consistent cutting performance across demanding jobs. The left-hand orientation isn’t just a novelty—it's a value-add for reverse drilling applications and for situations where you need to back out a fastener or start a hole with a reverse motion.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDrilling in hard metals where heat buildup would quickly dull ordinary bits\u003c\/li\u003e \u003cli\u003eProjects requiring a reverse-cutting approach, such as reverse drilling or fastener extraction\u003c\/li\u003e \u003cli\u003eApplications in metalworking shops, fabrication benches, and DIY projects involving steel, stainless steel, or cast iron\u003c\/li\u003e \u003cli\u003eOperations that benefit from a straight shank for reliable grip in standard chucks\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUse appropriate cutting fluid or coolant to extend bit life and improve performance\u003c\/li\u003e \u003cli\u003eStart at a moderate speed and increase gradually as you verify cut quality\u003c\/li\u003e \u003cli\u003eLet the bit do the work—avoid applying excessive pressure to prevent dulling or chipping\u003c\/li\u003e \u003cli\u003eKeep the bit cool and clear of debris to maintain a clean, accurate hole\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned for professionals and serious hobbyists alike, the Century Drill \u0026amp; Tool 1\/4 in. cobalt steel left-hand drill bit with a straight shank is a focused, purpose-built solution for challenging metal drilling tasks. Add it to your toolkit to tackle hard metals with confidence, backed by Century’s legacy of reliable tooling.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Century Drill \u0026 Tool","offers":[{"title":"Default Title","offer_id":52270063714578,"sku":"2768059","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/2768059_A.eps_High.jpg?v=1778696041","url":"https:\/\/nationalhardwaregroup.com\/products\/century-drill-tool-1-4-in-x-3-5-16-in-l-cobalt-steel-left-hand-drill-bit-straight-shank","provider":"National Hardware Group","version":"1.0","type":"link"}