{"product_id":"chicago-latrobe-47228-jobber-drill-bit-1-25-mm-hss","title":"Chicago-latrobe 47228 Jobber Drill Bit 1.25 Mm Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 47228 is a jobber length twist drill bit designed for general-purpose hole-making in metalworking and fabrication applications. It is manufactured from high speed steel with an oxide coating that provides basic corrosion resistance and lubricity during cutting. The bit has a 1.25 mm diameter (0.0492 inches), an overall length of 38 mm (approximately 1.496 inches), and a 118-degree standard drill point angle. The two-flute spiral design with a regular helix and web-thinned, tapered web geometry promotes chip evacuation and reduces thrust when drilling into ferrous materials. Machinists, tool-and-die workers, and maintenance technicians install this bit in standard drill presses, CNC machines, and hand drills.\u003c\/p\u003e\n\u003cp\u003eThis bit is suited for drilling cast iron and steel in light to medium-duty production and maintenance environments. The straight-cylindrical shank with a diameter of 0.0492 inches fits standard three-jaw drill chucks and collet holders without modification. The Series 150 designation indicates a general-purpose jobber-length product built to DIN 338 specification, making it a common choice for shops that standardize on metric tooling. The short flute length of 16 mm (approximately 0.630 inches) and the compact overall length keep the tool rigid at small diameters.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh speed steel construction with oxide coating for basic lubricity and corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle for general-purpose entry into cast iron and steel\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web reduces drilling thrust and improves point stability\u003c\/li\u003e\n  \u003cli\u003eTwo-flute regular spiral promotes efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard chucks and collet systems\u003c\/li\u003e\n  \u003cli\u003eManufactured to DIN 338 specification for consistent dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use jobber drill bit for general-purpose metalworking applications involving cast iron and steel workpiece materials. Primary workpiece materials listed by the manufacturer are cast iron and steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis bit is installed by machinists and maintenance technicians in any chuck or collet system that accommodates a straight shank of 0.0492 inches. Before changing tooling, power down and de-energize the machine spindle completely. Secure the shank firmly in the chuck to the full depth of chuck jaw engagement to minimize runout at this small diameter. At 1.25 mm, the bit is fragile under side load — use appropriate feed rates and avoid lateral force during drilling.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 1.25 mm (0.0492 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 38 mm (approximately 1.496 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 16 mm (approximately 0.630 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 22 mm (0.8662 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0492 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: 118 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular Helix\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0005 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 338\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 150\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: CHICAGO-LATROBE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 47228\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51738633306418,"sku":"47228","price":34.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1eca19afe150757905f09246344639f8_c3fada9f-0a33-4a4c-ac53-b0163ffdd8dc.jpg?v=1788802117","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-47228-jobber-drill-bit-1-25-mm-hss","provider":"Voomi Supply","version":"1.0","type":"link"}