{"product_id":"m-a-ford-20508100-screw-machine-drill-bit-46-wire","title":"M.a. Ford 20508100 Screw Machine Drill Bit 46 Wire","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe M.A. FORD 20508100 is a screw machine length drill bit sized for wire gauge 46, equivalent to 0.0810 inches in diameter. Manufactured from solid carbide throughout, it features a 135-degree split point with web thinning for fast, accurate starts and reduced thrust on entry. The slow spiral flute geometry is optimized for chip evacuation in challenging materials. With a straight cylindrical shank of the same 0.0810-inch diameter, it seats securely in standard drill chucks and quick-change holders. Overall length is 1.75 inches, keeping it rigid and minimizing deflection in small-hole drilling applications where positional accuracy matters.\u003c\/p\u003e\n\u003cp\u003eThis bit is intended for production and maintenance drilling in cast iron, non-ferrous metals, stainless steel, and general steel. The screw machine length format is common in CNC drilling centers, manual drill presses, and benchtop machines where a short, stiff tool is preferred over a jobber-length bit. The 0.75-inch flute length supports a 3xD depth-to-diameter ratio, making it practical for shallow through-holes and countersink prep work typical in fabrication and machining environments. Licensed machinists, tool-and-die technicians, and maintenance mechanics are the primary users of this product.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction for hardness and wear resistance in ferrous and non-ferrous materials\u003c\/li\u003e\n  \u003cli\u003e135-degree web-thinned split point reduces walking and lowers entry thrust\u003c\/li\u003e\n  \u003cli\u003eSlow spiral flute geometry promotes chip clearing in cast iron and stainless steel\u003c\/li\u003e\n  \u003cli\u003eScrew machine length body limits deflection and improves hole location accuracy\u003c\/li\u003e\n  \u003cli\u003eSingle-margin design with straight cylindrical shank for straightforward chuck mounting\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish suitable for use with cutting fluid or dry in appropriate materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in standard drill chucks, collet holders, and quick-change tooling systems that accept a 0.0810-inch straight cylindrical shank. Suited for drilling cast iron, non-ferrous metal, stainless steel, and steel workpieces as noted in the product specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with small-diameter carbide tooling. Secure the shank fully in the chuck or collet before applying power, and confirm runout is within acceptable limits before drilling, as carbide is brittle and sensitive to lateral loading. Apply appropriate cutting fluid when drilling stainless steel or hardened steel to extend tool life and prevent work hardening at the hole entrance. Avoid side pressure or interrupted cuts that could cause chipping or breakage of the carbide body.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 46\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.0810 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating \/ Finish\u003c\/strong\u003e: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Slow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.75 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: 0.0810 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 1.0 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.0000 to -0.0005 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Margins\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal, Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 205\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: M.A. FORD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 20508100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"M.A. FORD","offers":[{"title":"Default Title","offer_id":51734733324594,"sku":"20508100","price":33.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f08e4cc86bc9f13b401ef4fe0fdfc632_c7ee7390-9152-4de1-85c7-c5533374cf48.jpg?v=1788766299","url":"https:\/\/voomisupply.com\/products\/m-a-ford-20508100-screw-machine-drill-bit-46-wire","provider":"Voomi Supply","version":"1.0","type":"link"}