{"product_id":"cle-line-c30528-cobalt-mechanics-drill-bit-7-16-in","title":"Cle-line C30528 Cobalt Mechanics Drill Bit 7\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLE-LINE C30528 is a left-hand-cut cobalt mechanics drill bit designed for drilling into superalloys, titanium, and other hard-to-machine materials. The 7\/16-inch diameter bit features a 135-degree split point that reduces walking on contact and lowers the thrust needed to start the cut. At 4-9\/16 inches overall length with a 2-5\/8-inch flute length, it fits standard drill chucks via its straight cylindrical shank. The gold coating provides surface hardness and helps identify web-thinned geometry at a glance. This bit is built to Series 1880 specifications and conforms to ASME B94.11M standards, making it a reliable choice for precision drilling in demanding shop and field conditions.\u003c\/p\u003e\n\u003cp\u003eThe C30528 is suited for machinists, maintenance mechanics, and metalworking professionals who need a left-hand-cut bit for removing broken fasteners or drilling in reverse rotation. The mechanics-length body fits tightly into drill presses and hand-held power drills alike. Primary workpiece materials include superalloys, titanium, and high-strength steels common in aerospace, heavy equipment, and industrial manufacturing environments. The general-purpose tool performance rating covers a broad range of production and repair applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eLeft-hand cutting direction aids broken bolt and stud extraction during reverse-rotation drilling\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces walking and decreases required thrust at start of cut\u003c\/li\u003e\n  \u003cli\u003eCobalt construction with gold finish handles superalloys, titanium, and high-strength metals\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web configuration improves chip evacuation and reduces heat buildup\u003c\/li\u003e\n  \u003cli\u003eStraight cylindrical shank fits standard three-jaw chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B94.11M for dimensional consistency and interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill presses and hand-held power drills with a 7\/16-inch or larger chuck capacity. Primary workpiece materials are superalloys, titanium, and related hard metals per material codes H, K, M, P, and S.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eLeft-hand drill bits are installed and used with the drill set to reverse rotation. Secure the workpiece firmly before drilling and use cutting fluid appropriate for cobalt tooling on hard metals to extend bit life. Inspect the split point for chipping before each use, as a damaged point will increase runout and heat. This bit should be handled and stored separately from right-hand bits to avoid mix-ups during fastener-extraction work.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 7\/16 inches (0.4375 inches \/ 11.11 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-9\/16 inches (4.5625 inches \/ 115.89 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-5\/8 inches (2.6250 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Left Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Gold\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral (Regular)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Mechanics\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Superalloy, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1880\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B94.11M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\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: CLE-LINE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C30528\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLE-LINE","offers":[{"title":"Default Title","offer_id":52020509573426,"sku":"C30528","price":192.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a12961e6c89c29bfbe417177643a781e.jpg?v=1790011804","url":"https:\/\/voomisupply.com\/products\/cle-line-c30528-cobalt-mechanics-drill-bit-7-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}