{"product_id":"hertel-84578624-jobber-drill-bit-letter-k-hss-tin","title":"Hertel 84578624 Jobber Drill Bit Letter K Hss Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 84578624 is a jobber-length drill bit sized at Letter K (0.2810 inches decimal equivalent), designed for general-purpose drilling in a wide range of materials. Built from high speed steel (HSS) with a titanium nitride (TiN) coating, this bit delivers improved surface hardness and extended tool life compared to uncoated HSS. The 118-degree standard point angle suits most common drilling applications. With an overall length of 4.25 inches and a flute length of 2.9375 inches, the 84578624 fits standard drill chucks and CNC setups. The two-flute spiral design and web-thinned, tapered web configuration promote chip evacuation and reduce entry thrust. This bit is installed by machinists, maintenance technicians, and trade professionals across fabrication, HVAC, plumbing, and electrical work.\u003c\/p\u003e\u003cp\u003eThe HERTEL 84578624 is suited for general-purpose drilling in metal, plastic, and wood in both shop and field environments. The straight cylindrical shank with a 0.2810-inch diameter fits standard drill chucks without modification. The right-hand cut spiral flute works with conventional drill press, hand drill, and CNC spindle setups. It covers the 0.2500 to 0.3000 inch drill bit size range, making it a practical choice when a Letter K hole is required for tapping, reaming prep, or clearance drilling in residential and light commercial trade work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLetter K size at 0.2810 inches decimal equivalent for precise hole sizing\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction with TiN coating for increased surface hardness and wear resistance\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced entry thrust\u003c\/li\u003e\n\u003cli\u003eTwo-flute regular spiral design promotes efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical shank fits standard chucks without modification\u003c\/li\u003e\n\u003cli\u003eRight-hand cut for use with conventional and CNC drilling equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber-length drill bit compatible with standard drill chucks accepting a 0.2810-inch straight cylindrical shank, including drill presses, hand drills, and CNC machining centers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the shank fully in the chuck and verify chuck key is removed before starting the spindle. Power down the drill or de-energize the CNC before bit changes. Use appropriate cutting fluid or coolant when drilling ferrous metals to preserve coating life; note that this bit does not support coolant-through delivery. Wear appropriate eye protection and secure workpieces per shop safety standards.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.2810 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\u003eOverall Length\u003c\/strong\u003e: 4.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.9375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2810 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: 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\u003eCoating\/Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize Range\u003c\/strong\u003e: 0.2500 to 0.3000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.3 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: 84578624\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51747560620338,"sku":"84578624","price":17.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cdfea10786eb71d1bb5aeae97fc579da.jpg?v=1788882585","url":"https:\/\/voomisupply.com\/products\/hertel-84578624-jobber-drill-bit-letter-k-hss-tin","provider":"Voomi Supply","version":"1.0","type":"link"}