{"product_id":"milwaukee-48-89-2522-cobalt-jobber-drill-bit-4-9-in","title":"Milwaukee 48-89-2522 Cobalt Jobber Drill Bit 4.9 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MILWAUKEE 48-89-2522 is a cobalt jobber-length twist drill bit built for hard metal applications where standard high-speed steel bits fail prematurely. The variable helix geometry transitions from a 35-degree cutting angle down to 15 degrees, accelerating chip evacuation and reducing heat buildup at the cutting edge. A 135-degree split-point tip starts on contact without a center punch and eliminates walking on curved or flat surfaces. This bit is sold as a single unit and is sized to metric specifications, making it a practical choice for HVAC techs, pipefitters, electricians, and maintenance professionals drilling into stainless, alloy steel, cast iron, and other hard metals.\u003c\/p\u003e\n\u003cp\u003eThe 48-89-2522 is suited for jobsite and shop use in residential and light commercial settings. Its jobber-length body fits standard three-jaw chucks on corded and cordless drill drivers and drill presses. The shank incorporates a secure-grip geometry that reduces slippage under torque. Professionals working with hard metals who need consistent, repeatable hole quality will find this bit appropriate for structural steel, sheet metal, angle iron, and similar materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eVariable helix design transitions from 35 degrees to 15 degrees for rapid chip removal and reduced heat\u003c\/li\u003e\n  \u003cli\u003e135-degree split-point tip starts on contact and prevents walking without a center punch\u003c\/li\u003e\n  \u003cli\u003eCobalt construction extends service life in hard metal applications compared to black oxide bits\u003c\/li\u003e\n  \u003cli\u003eChip breaker geometry limits heat buildup at the cutting edge to maintain edge sharpness longer\u003c\/li\u003e\n  \u003cli\u003eSecure-grip shank reduces bit slippage inside the chuck under load\u003c\/li\u003e\n  \u003cli\u003eMetric sizing for applications requiring metric hole specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a jobber-length twist drill bit compatible with standard three-jaw chucks on corded drill drivers, cordless drill drivers, and bench drill presses used in hard metal drilling applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation of this bit should be performed by a qualified tradesperson familiar with rotary drilling equipment. Secure the bit fully in the chuck and verify it runs true before applying feed pressure. Wear appropriate eye protection and secure the workpiece before drilling. Apply cutting fluid when drilling hard alloys to extend bit life and reduce heat at the tip.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.9 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Length\u003c\/strong\u003e: 6.7 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 1.9 inches\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 0.4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 135 degrees split point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 35 degrees to 15 degrees variable\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSizing Standard\u003c\/strong\u003e: Metric\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSold As\u003c\/strong\u003e: Each\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 045242519521\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: 48-89-2522\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MILWAUKEE","offers":[{"title":"Default Title","offer_id":51345905156402,"sku":"48-89-2522","price":22.82,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310512806.jpg?v=1782066087","url":"https:\/\/voomisupply.com\/products\/milwaukee-48-89-2522-cobalt-jobber-drill-bit-4-9-in","provider":"Voomi Supply","version":"1.0","type":"link"}