{"product_id":"hertel-66692054-screw-machine-drill-bit-size-29-cobalt","title":"Hertel 66692054 Screw Machine Drill Bit Size 29 Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 66692054 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal fabrication, machining, and general industrial applications. Built from cobalt high-speed steel with a titanium nitride (TiN) coating, it delivers extended tool life in hard and abrasive materials where standard HSS bits wear quickly. The 135-degree split point reduces walking and lowers entry force, enabling accurate starts without a center punch. At 1-15\/16 inches overall length, the stub-length body provides added rigidity and reduces deflection in short-reach drilling setups. Machinists, tool-and-die technicians, and industrial maintenance crews are the primary installers of this type of bit.\u003c\/p\u003e\n\u003cp\u003eThis bit is sized at wire gauge number 29, with a decimal equivalent of 0.1360 inches. It suits screw machine operations, drill press work, and CNC applications calling for stub-length tooling in the 0.1000 to 0.1500 inch range. The straight-cylindrical shank seats directly in standard drill chucks and collet holders. Right-hand spiral flutes evacuate chips efficiently during through-hole and blind-hole drilling. Its heavy-duty grade makes it appropriate for stainless steel, alloy steel, cast iron, and other difficult-to-machine materials where a standard jobber-length bit would flex or fail prematurely.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt construction with TiN coating for extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003e135-degree split point reduces entry force and resists walking on curved or uneven surfaces\u003c\/li\u003e\n  \u003cli\u003eStub screw machine length (1-15\/16 inches OAL) provides rigidity and reduces deflection\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel-web design lowers cutting resistance and improves chip clearance\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard chucks and collet holders without adapters\u003c\/li\u003e\n  \u003cli\u003eRight-hand spiral flutes for conventional chip evacuation in drill press and CNC setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in any drill press, screw machine, or CNC spindle accepting a straight-cylindrical shank drill bit with a 0.1360-inch shank diameter. Suitable for applications requiring tooling within the 0.1000 to 0.1500 inch decimal inch size range.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed machinist or qualified industrial technician should install and operate this tooling. Secure the shank fully in the chuck or collet before applying power, and verify runout is within acceptable tolerance for the application. Use cutting fluid appropriate for the workpiece material to maximize coating life and chip evacuation. Inspect the cutting edge for wear before each use and replace the bit if chipping or coating breakdown is observed.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 29\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1360 inches\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: TiN (Titanium Nitride)\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\u003eOverall Length\u003c\/strong\u003e: 1-15\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 15\/16 inches\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: 0.1360 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size Range\u003c\/strong\u003e: 0.1000 to 0.1500 inches\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: 23241635\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66692054\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51743466389810,"sku":"66692054","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3fc08bb0b9ec1e2d8e5074350f63739b.jpg?v=1788847335","url":"https:\/\/voomisupply.com\/products\/hertel-66692054-screw-machine-drill-bit-size-29-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}