{"product_id":"walter-titex-5058393-jobber-drill-bit-0-31mm-hss","title":"Walter-titex 5058393 Jobber Drill Bit 0.31mm Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WALTER-TITEX 5058393 is a jobber length twist drill bit designed for precision drilling in metalworking applications. Built from high speed steel with an oxide coating, this bit measures 0.31 mm (0.0122 inches) in diameter with an overall length of 19.00 mm (0.75 inches). The 118-degree standard point angle and web-thinned, tapered web configuration reduce entry force and improve chip evacuation on entry. With a regular spiral flute and right-hand cutting direction, it is suited for controlled, repeatable hole-making on the bench or in a drill press. Licensed machinists, tool-and-die technicians, and precision metalworkers are the primary installers of bits in this size range.\u003c\/p\u003e\u003cp\u003eThis bit is rated for use in cast iron and steel workpiece materials, covering material codes K and P. Typical applications include blind hole drilling and stack drilling operations where a consistent, tight-tolerance bore is required. The Series A1211 designation places this bit within a general-purpose, high-performance product line conforming to ANSI, ISO, BS, and DIN standards. The h8 diameter tolerance ensures dimensional consistency across production runs. Its compact flute length of 4.00 mm (approximately 5\/32 inches) supports stability at sub-millimeter diameters where deflection risk is highest.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh speed steel construction with oxide coating for surface protection and reduced friction\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced thrust force\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flute for efficient chip removal in blind hole and stack drilling\u003c\/li\u003e\n\u003cli\u003eh8 diameter tolerance for consistent, repeatable bore sizing\u003c\/li\u003e\n\u003cli\u003eConforms to ANSI, ISO, BS, and DIN standards\u003c\/li\u003e\n\u003cli\u003eStraight-cylindrical shank fits standard collets and drill chucks for this diameter range\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style general-purpose drill bit for use in manual drill presses, CNC machining centers, and hand-held drilling equipment that accept straight-cylindrical shanks in the sub-millimeter diameter range. Compatible with cast iron and steel workpiece materials per Series A1211 application guidelines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis bit should be installed and operated by qualified machinists or metalworking technicians familiar with micro-diameter tooling. Secure the straight-cylindrical shank fully in the chuck or collet before operating to prevent runout, which is especially critical at diameters below 0.5 mm. Power down and de-energize the spindle completely before changing tooling. Do not exceed the recommended maximum drilling depth of 3.40 mm (0.1340 inches) without withdrawing to clear chips.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.31 mm (0.0122 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 19.00 mm (0.75 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 4.00 mm (approximately 5\/32 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 15.00 mm (0.5910 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 3.40 mm (0.1340 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\u003eDrill Point Length\u003c\/strong\u003e: 0.09 mm (0.0036 inches)\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\u003eShank Diameter\u003c\/strong\u003e: 0.0122 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: h8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 8xD\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\u003eTool Application\u003c\/strong\u003e: Blind Hole, Stack Drilling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: A1211\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO, BS, DIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WALTER-TITEX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5058393\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER-TITEX","offers":[{"title":"Default Title","offer_id":51748531601714,"sku":"5058393","price":119.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9437678eb2941250245f4e37764b6c5e_b86104bb-efae-49cb-aa23-e09d8497639e.jpg?v=1788894904","url":"https:\/\/voomisupply.com\/products\/walter-titex-5058393-jobber-drill-bit-0-31mm-hss","provider":"Voomi Supply","version":"1.0","type":"link"}