{"product_id":"accupro-4500114-jobber-drill-letter-x-solid-carbide","title":"Accupro 4500114 Jobber Drill Letter X Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 4500114 is a solid carbide jobber-length drill bit sized to Letter X (0.3970 inches decimal equivalent) with a 140-degree split-point geometry and a TiAlN coating. It is designed for drilling into hardened materials where standard high-speed steel bits fail to hold an edge. The slow spiral flute design controls chip evacuation in tough, abrasive workpieces, and the UR-thinned web reduces thrust load at entry. With an overall length of 4.375 inches and a straight cylindrical shank measuring 0.500 inches in diameter, this bit mounts directly in standard drill chucks and collet holders. It is used by machinists, tool-and-die professionals, and maintenance mechanics working on hardened steel components.\u003c\/p\u003e\u003cp\u003eThe 4500114 is suited for production and maintenance drilling applications in hardened steel, alloy steel, and similarly abrasive ferrous materials. The 2.500-inch flute length provides sufficient depth capacity for most through-hole and blind-hole work in the Letter X size range. No coolant-through capability is present, so adequate surface-applied cutting fluid is recommended when drilling hardened workpieces at elevated feed rates. This bit follows DIN specification standards and carries a specialized grade designation, making it appropriate for shops that require dimensional and quality traceability on tooling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hardened workpiece materials\u003c\/li\u003e\n\u003cli\u003eTiAlN coating extends tool life in high-temperature cutting conditions\u003c\/li\u003e\n\u003cli\u003e140-degree proprietary point angle reduces walking and improves entry accuracy\u003c\/li\u003e\n\u003cli\u003eSlow spiral flute design optimizes chip flow in hard, low-ductility materials\u003c\/li\u003e\n\u003cli\u003eUR-thinned web lowers axial thrust at drill entry\u003c\/li\u003e\n\u003cli\u003eStraight cylindrical 0.500-inch shank fits standard chucks and collet toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a jobber-length replacement or production drill bit for applications requiring a Letter X (0.3970-inch) hole diameter in hardened ferrous materials, conforming to DIN specification standards.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified machinists or maintenance technicians familiar with cutting tool setup and speeds-and-feeds selection for carbide tooling. Secure the straight shank fully in a collet or drill chuck rated for the shank diameter before operation. Apply a compatible cutting fluid at the work surface when drilling hardened materials, as this bit does not support coolant-through delivery. Inspect the cutting edges before each use — carbide is brittle and chipping from improper handling will compromise hole quality and dimensional accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Letter)\u003c\/strong\u003e: X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.3970 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Proprietary\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Slow Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 2.500 inches (63.50 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.375 inches (111.13 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: UR-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 4xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Hardened Materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Designation\u003c\/strong\u003e: DIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Specialized\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.17 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: ACCUPRO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4500114\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51732485800242,"sku":"4500114","price":232.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9aa473edc529a39e8ea8175e78792f7a.jpg?v=1788743490","url":"https:\/\/voomisupply.com\/products\/accupro-4500114-jobber-drill-letter-x-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}