{"product_id":"milwaukee-48-89-2313-cobalt-drill-bit-1-4-inch","title":"Milwaukee 48-89-2313 Cobalt Drill Bit 1\/4 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MILWAUKEE 48-89-2313 is a 1\/4-inch cobalt twist drill bit engineered for hard metal drilling and extended service life. It features a variable helix design with an aggressive 35-degree helix angle transitioning to 15 degrees, which evacuates chips efficiently and reduces heat buildup during prolonged cuts. A 135-degree split point tip starts on contact without center-punching and prevents walking on curved or hard surfaces. The 3-flat shank locks securely in chucks to prevent slipping under torque. This bit is well suited for electricians, plumbers, HVAC techs, and general trade professionals who regularly drill through steel, stainless steel, and structural metal.\u003c\/p\u003e\n\u003cp\u003eThe 48-89-2313 is designed for hard metal, stainless steel, mild steel, wood, PVC, and plastic applications. The enhanced tapered web strengthens the core along the full flute length, reducing breakage during aggressive feed rates. The cobalt construction resists softening under heat, making it appropriate for production drilling where bits are used continuously. It sells as a single bit and fits standard 3-jaw and quick-change chucks with 3-flat shanks. Trade installers working in mechanical rooms, electrical panels, and pipe racks will find it effective for both on-site drilling and bench work.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eVariable helix geometry: 35-degree angle transitioning to 15 degrees for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003e135-degree split point tip for self-starting, no-walk entry on hard surfaces\u003c\/li\u003e\n  \u003cli\u003eCobalt coating for heat resistance and extended life in hard metal applications\u003c\/li\u003e\n  \u003cli\u003eEnhanced tapered web strengthens the core and increases flute durability\u003c\/li\u003e\n  \u003cli\u003e3-flat shank prevents rotation in chuck under high torque\u003c\/li\u003e\n  \u003cli\u003eCompatible with wood, metal, stainless steel, PVC, and plastic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in hard metal, stainless steel, mild steel, wood, PVC, and plastic. Fits standard drill chucks and 3-flat quick-change chuck systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall the 3-flat shank securely in a keyed or keyless drill chuck before use. Power down and disconnect tools before changing bits. Use appropriate cutting fluid when drilling stainless steel or hard alloys to extend bit life and reduce heat. Wear appropriate eye protection per OSHA general industry standards when drilling metal.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDecimal Equivalent\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.09 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: 3-Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Metal, Stainless Steel, Wood, PVC, Plastic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MILWAUKEE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 48-89-2313\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MILWAUKEE","offers":[{"title":"Default Title","offer_id":51138418737458,"sku":"48-89-2313","price":27.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/305526797.jpg?v=1778255888","url":"https:\/\/voomisupply.com\/products\/milwaukee-48-89-2313-cobalt-drill-bit-1-4-inch","provider":"Voomi Supply","version":"1.0","type":"link"}