{"product_id":"hertel-c-402-0425-jobber-drill-bit-4-25-mm-hss","title":"Hertel C.402.0425 Jobber Drill Bit 4.25 Mm Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL C.402.0425 is a high speed steel jobber-length drill bit designed for general-purpose metal drilling in professional shop and field applications. The bit measures 4.25 mm (0.1673 inches) in diameter with an 83 mm (3.27 inches) overall length and a 54 mm (2.13 inches) flute length. The 118-degree standard point angle is the industry baseline for drilling mild steel, aluminum, brass, and similar materials. An oxide finish reduces friction and provides basic corrosion resistance during storage and use. Right-hand spiral flutes evacuate chips efficiently, helping maintain cut quality and reduce heat buildup during production drilling.\u003c\/p\u003e\u003cp\u003eThis drill bit is suited for machinists, maintenance technicians, fabricators, and industrial tradespeople who need a reliable general-purpose drill in the 4.00 mm to 5.00 mm size range. The straight-cylindrical shank fits standard drill chucks on benchtop drill presses, handheld power drills, and CNC drill stations without an adapter. It is appropriate for single-pass and repetitive drilling tasks in light manufacturing, maintenance repair operations, and job-site metalwork.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4.25 mm (0.1673 inches) diameter fits the 4.00 mm to 5.00 mm general-purpose size range\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle for drilling mild steel, aluminum, and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction provides heat resistance during sustained drilling operations\u003c\/li\u003e\n\u003cli\u003eOxide coating reduces friction and provides basic corrosion protection\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute geometry promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard 3-jaw drill chucks without modification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber drill for use in any standard drill chuck accepting a straight-cylindrical shank in the 4.00 mm to 5.00 mm diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the shank fully in the drill chuck and verify concentricity before drilling. Always wear appropriate eye protection and secure workpieces firmly before operation. Use cutting fluid on harder materials to extend tool life and reduce heat. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point is damaged.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 4.25 mm (0.1673 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 83 mm (3.27 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 54 mm (2.13 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Grade\u003c\/strong\u003e: General Purpose\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: C.402.0425\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737206292786,"sku":"C.402.0425","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/33ae4bf19c9b15dd99eb6124169ab738.jpg?v=1788785583","url":"https:\/\/voomisupply.com\/products\/hertel-c-402-0425-jobber-drill-bit-4-25-mm-hss","provider":"Voomi Supply","version":"1.0","type":"link"}