{"product_id":"hertel-77428605-reduced-shank-drill-bit-35-64-inch-hss","title":"Hertel 77428605 Reduced Shank Drill Bit 35\/64 Inch Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 77428605 is a reduced shank drill bit designed for precision drilling in low and medium tensile strength materials. Built from high-speed steel (HSS) with an oxide finish, it delivers durability and heat resistance in demanding shop and field conditions. The bit measures 35\/64 inch in diameter (0.5469 inch decimal) with a 1\/2 inch Weldon flat shank for secure, slip-resistant chuck engagement. Overall length is 6 inches with a 3 inch flute length and a standard 118-degree point angle. The Weldon shank features 3 flats, making it well suited for end mill holders and Weldon-style chucks. Right-hand spiral fluting evacuates chips efficiently during through-hole and blind-hole applications.\u003c\/p\u003e\u003cp\u003eThis drill bit is intended for metalworking applications involving low and medium tensile strength materials such as mild steel, aluminum, and similar metals. The reduced shank design allows a 35\/64 inch cutting diameter to be used in a standard 1\/2 inch chuck without requiring a larger spindle. It is commonly used in machine shop environments, manufacturing lines, and maintenance settings where consistent, repeatable hole sizing is required. The 3 inch maximum drilling depth supports typical through-hole and moderate-depth blind-hole work on plate and structural stock.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e35\/64 inch cutting diameter (0.5469 inch decimal) with 1\/2 inch reduced Weldon flat shank\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for heat and wear resistance in metal drilling\u003c\/li\u003e\n\u003cli\u003eStandard 118-degree point angle for general-purpose drilling in mild metals\u003c\/li\u003e\n\u003cli\u003eOxide finish reduces friction and provides corrosion resistance\u003c\/li\u003e\n\u003cli\u003e3-flat Weldon shank prevents rotation in compatible holders and chucks\u003c\/li\u003e\n\u003cli\u003eRight-hand, regular spiral fluting for efficient chip evacuation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with 1\/2 inch Weldon-style end mill holders and chucks; suitable for drilling low and medium tensile strength materials including mild steel and aluminum.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tool operator. Secure the Weldon shank firmly in a compatible holder, aligning at least one flat with the set screw to prevent axial pull-out during operation. Ensure the machine spindle is fully stopped and locked out before changing or adjusting the bit. This bit does not support coolant-through operation; use appropriate external cutting fluid when drilling ferrous materials to extend tool life.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size\u003c\/strong\u003e: 35\/64 inch (0.5469 inch decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Weldon Flat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flats\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 3 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\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\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\u003eCoolant\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Low and Medium Tensile Strength Materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.28 pounds\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: 77428605\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51741892542770,"sku":"77428605","price":61.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/947de80bd41c2396bb835be94e37d7b2.jpg?v=1788834111","url":"https:\/\/voomisupply.com\/products\/hertel-77428605-reduced-shank-drill-bit-35-64-inch-hss","provider":"Voomi Supply","version":"1.0","type":"link"}