{"product_id":"chicago-latrobe-70229-jobber-drill-bit-29-64-in-hss-tin","title":"Chicago-latrobe 70229 Jobber Drill Bit 29\/64 in Hss Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CHICAGO-LATROBE 70229 is a jobber-length twist drill bit designed for general-purpose metal drilling in production and maintenance applications. Built from high speed steel with a titanium nitride (TiN) coating, it offers increased surface hardness and wear resistance compared to uncoated HSS bits. The 118-degree standard point angle suits a wide range of common metals and is the go-to geometry for most shop and field drilling setups. At 5-5\/8 inches overall length with a 4-3\/16-inch flute length, it fits standard drill chucks and drill presses without modification. The web-thinned, tapered web design reduces thrust and improves chip clearance during cut entry. Machinists, fabricators, and maintenance technicians will find this bit well-suited to everyday ferrous and non-ferrous drilling tasks.\u003c\/p\u003e\n\u003cp\u003eThe 70229 is intended for drilling cast iron and steel in residential, commercial, and light industrial settings. It is equally at home in a hand-held drill, a drill press, or a CNC drilling setup running general-purpose feeds and speeds. The right-hand spiral flute and straight-cylindrical shank make it directly compatible with standard three-jaw chucks and quick-change systems. This bit carries the Series 150T designation and meets DIN 338 standards, making it a recognized benchmark geometry for jobber-length drill bits across the trade.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTitanium nitride (TiN) coating increases hardness and extends cutting life on ferrous materials\u003c\/li\u003e\n  \u003cli\u003e118-degree standard point angle suits cast iron, mild steel, and general-purpose drilling\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, tapered web reduces entry thrust and improves chip evacuation\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with regular spiral flute for reliable chip clearing in through-hole drilling\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank at 29\/64 inches diameter fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eMeets DIN 338 jobber-length standard for consistent geometry and fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a general-purpose jobber-length drill bit compatible with any standard drill chuck or quick-change system accepting a straight-cylindrical shank in the 29\/64-inch diameter range. Primary workpiece materials are cast iron and steel per manufacturer specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and remove drill bits only with the drill or press powered down and any rotating spindle fully stopped. Secure the shank firmly in the chuck and verify concentricity before starting the cut. No coolant-through capability is present on this bit; apply cutting fluid externally when drilling steel at higher feed rates to extend tool life. Always wear appropriate eye protection when operating drilling equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 29\/64 inches (0.4531 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5-5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4-3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 29\/64 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.4375 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\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral, Regular\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\u003eBit Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0010 to 0.0000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 150T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: DIN 338\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.1 pounds\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: 70229\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CHICAGO-LATROBE","offers":[{"title":"Default Title","offer_id":51733712011570,"sku":"70229","price":33.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/51e0bc537573a359285d1c4bd02b217c.jpg?v=1788758675","url":"https:\/\/voomisupply.com\/products\/chicago-latrobe-70229-jobber-drill-bit-29-64-in-hss-tin","provider":"Voomi Supply","version":"1.0","type":"link"}