{"product_id":"hertel-2386647-screw-machine-drill-bit-size-57-hss","title":"Hertel 2386647 Screw Machine Drill Bit Size 57 Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 2386647 is a screw machine length drill bit designed for high-cycle drilling in metal, plastic, and similar materials where a stubby, rigid profile is required. Built from high-speed steel with an oxide finish, it carries a wire gauge size 57 designation, corresponding to a decimal diameter of 0.0430 inches. The 135-degree split point reduces walking on entry and lowers thrust force compared to conventional 118-degree points. At 1-3\/8 inches overall length with a 1\/2-inch flute, this short-body geometry maximizes rigidity and minimizes deflection in screw machine, turret lathe, and CNC drilling operations. Right-hand spiral flutes evacuate chips efficiently in through-hole and blind-hole applications.\u003c\/p\u003e\u003cp\u003eThis bit is suited for production drilling environments including screw machines, turret lathes, drill presses, and CNC machining centers where a short, stiff drill is preferred over jobber-length tooling. The straight-cylindrical shank accepts standard chucks without additional toolholding. The oxide coating provides moderate lubricity and corrosion resistance during dry or lightly lubricated cutting. This is a single-piece package sold in multiples of 12, making it appropriate for toolroom stocking and high-volume replacement programs in machine shops and production facilities.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge size 57 (0.0430 inches) straight-cylindrical shank for standard chuck compatibility\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces thrust and self-centers on entry without a center punch\u003c\/li\u003e\n\u003cli\u003eWeb-thinned, parallel web construction lowers cutting resistance at small diameters\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction retains hardness at elevated cutting temperatures\u003c\/li\u003e\n\u003cli\u003eOxide finish provides light lubricity and basic corrosion protection\u003c\/li\u003e\n\u003cli\u003eScrew machine length (1-3\/8 inches OAL) maximizes rigidity and minimizes deflection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a screw machine length replacement drill bit suitable for standard chucks and collets accepting a 0.0430-inch straight-cylindrical shank in screw machine, turret lathe, and CNC drilling applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machining professionals using standard drill chucks or collet systems rated for small-diameter tooling. Ensure the machine spindle is fully stopped and locked out before changing tooling. Confirm chuck jaw condition and runout before seating small-diameter bits, as jaw wear increases deflection and breakage risk at sub-1\/16-inch diameters. Coolant-through is not supported; use external flood or mist coolant if the workpiece material and cutting speed require lubrication.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 57\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.0430 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1\/2 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.0430 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: 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\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\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\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: 0.05 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: 2386647\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51750489588018,"sku":"2386647","price":30.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/989fc5aeb812f642287c0b5f81a5ed75.jpg?v=1788915834","url":"https:\/\/voomisupply.com\/products\/hertel-2386647-screw-machine-drill-bit-size-57-hss","provider":"Voomi Supply","version":"1.0","type":"link"}