{"product_id":"hertel-74132366-drill-bit-size-39-cobalt-tialn","title":"Hertel 74132366 Drill Bit Size 39 Cobalt Tialn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 74132366 is a screw machine length drill bit built for high-speed metal removal in tight, production-oriented applications. Manufactured from cobalt high-speed steel and finished with a TiAlN coating, this bit handles harder workpiece materials and elevated cutting temperatures better than standard HSS tooling. It carries a wire gauge Size 39 designation, equivalent to 0.0995 inches in decimal. The 135-degree split point reduces walking on entry and lowers the thrust force needed to start a hole. Overall length is 1-13\/16 inches with a 13\/16-inch flute length, keeping the bit rigid and minimizing deflection. Right-hand spiral flutes clear chips efficiently. Machinists, tool-and-die techs, and production drillers are the primary users.\u003c\/p\u003e\u003cp\u003eScrew machine length drill bits are the short-series standard for drill press, CNC, and turret lathe work where rigidity and precision matter more than reach. The compact overall length of this bit makes it well suited for production drilling in steel, stainless, cast iron, and other ferrous alloys where cobalt tooling outperforms standard M2 HSS. It fits any drill press, mill, or lathe chuck accepting a straight-cylindrical shank. Web thinning and the parallel web configuration reduce cutting resistance and improve chip flow at the center of the bit.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction resists heat and wear in hard ferrous materials\u003c\/li\u003e\n\u003cli\u003eTiAlN coating extends tool life at higher surface speeds\u003c\/li\u003e\n\u003cli\u003e135-degree split point starts on contact without a center punch on most metals\u003c\/li\u003e\n\u003cli\u003eScrew machine length body provides superior rigidity versus jobber-length bits\u003c\/li\u003e\n\u003cli\u003eWeb-thinned parallel web reduces thrust and improves chip evacuation\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flutes compatible with standard chuck rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct substitute for Size 39 screw machine length drill bits with straight-cylindrical shanks used in standard drill chucks, CNC toolholders, and lathe turrets.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or tool-room technicians familiar with speeds and feeds for cobalt tooling. Secure the straight-cylindrical shank fully in the chuck before operation, and verify the chuck is properly tightened to prevent slippage. Always power down and de-energize the machine before changing tooling. Use appropriate cutting fluid or coolant where the application allows, as this bit does not support through-coolant delivery.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 39\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0995 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-13\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 13\/16 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\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\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\u003eWeb Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\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: 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241635\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: 74132366\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51739412627762,"sku":"74132366","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d32bcfee4b83b166c4355b33f49a67f7.jpg?v=1788814324","url":"https:\/\/voomisupply.com\/products\/hertel-74132366-drill-bit-size-39-cobalt-tialn","provider":"Voomi Supply","version":"1.0","type":"link"}