{"product_id":"hertel-4140646-cobalt-jobber-drill-bit-4-00-mm","title":"Hertel 4140646 Cobalt Jobber Drill Bit 4.00 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 4140646 is a cobalt jobber-length drill bit designed for high-performance holemaking in ferrous metals, stainless steel, and other hard materials. The 135-degree split point reduces walking at drill entry and lowers the thrust needed to start a hole without a center punch. A TiAlN coating improves heat resistance and extends tool life in demanding cutting conditions. The bit measures 4.00 mm (0.1575 inches) in diameter with a straight-cylindrical shank of the same diameter. The overall length is 3-17\/64 inches with a 2-1\/8-inch flute length. It is ground to Hertel Max Output grade for consistent performance in production and maintenance applications.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for metal fabrication shops, mechanical contractors, and maintenance technicians who need a reliable, coated cobalt bit in the 4.00 mm diameter range. The regular spiral flute and right-hand cutting direction make it compatible with standard drill presses, CNC machining centers, and hand-held electric drills. The web-thinned, tapered web configuration reduces cutting resistance, making it effective when drilling tough alloys or stainless steel plate. It is sold individually and is appropriate for both spot-repair work and light production drilling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4.00 mm (0.1575 inches) diameter with matching straight-cylindrical shank\u003c\/li\u003e\n\u003cli\u003e135-degree split point for self-centering entry and reduced thrust\u003c\/li\u003e\n\u003cli\u003eTiAlN coating for elevated heat resistance and extended tool life\u003c\/li\u003e\n\u003cli\u003eCobalt construction for strength in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eWeb-thinned tapered web reduces cutting resistance\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute for use with standard clockwise-rotation equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a jobber-series replacement or supplemental drill for any application requiring a 4.00 mm straight-shank bit in the 0.1500 to 0.2000 decimal-inch size range across standard drill chucks on drill presses, hand drills, and CNC machining centers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the bit firmly in the chuck and verify the chuck key is removed before starting the spindle. Use appropriate cutting fluid or cooling when drilling stainless steel or hardened alloys to preserve coating life. Follow shop safety practices and applicable OSHA standards for rotating tool use, including eye protection and proper workpiece clamping. Inspect the cutting edges for wear before each use and replace if the point shows chipping or excessive dulling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4.00 mm (0.1575 inches)\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Max Output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2-1\/8 inches (54.00 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-17\/64 inches (83 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1575 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble Margin\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: Jobber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4140646\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51746257109298,"sku":"4140646","price":20.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e113141491ffbd06d07fb50128c03bd0.jpg?v=1788867739","url":"https:\/\/voomisupply.com\/products\/hertel-4140646-cobalt-jobber-drill-bit-4-00-mm","provider":"Voomi Supply","version":"1.0","type":"link"}