{"product_id":"guhring-9005150079400-5-16-inch-stub-drill-bit","title":"Guhring 9005150079400 5\/16 Inch Stub Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GUHRING 9005150079400 is a screw machine length (stub) drill bit designed for high-productivity metal drilling in industrial and trade applications. Built from powdered metal (PMASP60 grade) with a coated finish, it delivers consistent performance in ferrous materials. The bit features a 130-degree drill point angle and a parabolic flute geometry for improved chip evacuation and reduced thrust in short-hole drilling operations. With a straight-cylindrical shank and web-thinned point, it mounts easily in standard drill chucks and CNC holders. This bit is used by machinists, tool-and-die technicians, and maintenance professionals who need a rigid, accurate stub-length drill for production work.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for drilling cast iron and steel in screw machine, turret lathe, and general machining center applications where a shorter flute length provides increased rigidity and reduced deflection. The stub (screw machine) length format makes it especially practical in tight-clearance setups or gang-drilling fixtures. The parabolic flute profile supports efficient chip removal in through-hole and shallow blind-hole applications up to the rated maximum drilling depth. It conforms to DIN 1897 specifications, making it a direct fit for metric-standard tooling programs as well.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePowdered metal (PMASP60) construction with coated finish for extended tool life in steel and cast iron\u003c\/li\u003e\n  \u003cli\u003e130-degree drill point angle reduces thrust and improves self-centering on flat and curved surfaces\u003c\/li\u003e\n  \u003cli\u003eParabolic flute design promotes fast, clean chip evacuation in short-hole drilling\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned, parallel-web construction lowers cutting resistance and heat buildup\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank compatible with standard drill chucks and collet holders\u003c\/li\u003e\n  \u003cli\u003eConforms to DIN 1897 specification for consistent dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-specification stub-length drill bit per DIN 1897 for use in straight-shank drill chucks, collet holders, and CNC turret stations where a 5\/16 inch diameter stub drill is required. Primary workpiece materials are cast iron and steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by a qualified machinist or tooling technician. Secure the shank fully in a properly sized collet or drill chuck before operation and verify runout before beginning a production run. Power down and de-energize the machine spindle completely before changing or inspecting the bit. Do not exceed the maximum drilling depth of 0.9880 inches per pass without retracting to clear chips.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 5\/16 inch (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.1102 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1.4567 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.9880 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 130 degrees\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: Parabolic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Parallel, Web-Thinned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute-to-Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Powdered Metal (PMASP60)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Coated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: +0.000 to -0.022 mm\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\u003eStandard\u003c\/strong\u003e: DIN 1897\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 515\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub (Screw Machine Length)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.07 pounds\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: GUHRING\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 9005150079400\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GUHRING","offers":[{"title":"Default Title","offer_id":51728212295986,"sku":"9005150079400","price":51.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/59f85730028374e4426a18b4385faa12.jpg?v=1788689637","url":"https:\/\/voomisupply.com\/products\/guhring-9005150079400-5-16-inch-stub-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}