{"product_id":"walter-titex-5153728-screw-machine-drill-bit-0-316-in","title":"Walter-titex 5153728 Screw Machine Drill Bit 0.316 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WALTER-TITEX 5153728 is a screw machine length drill bit designed for high-performance drilling in demanding materials. Built from cobalt vanadium high speed steel with a bright uncoated finish, it delivers the hardness and heat resistance needed for cutting through stainless steel, cast iron, hardened materials, and non-ferrous metals. The bit features a 130-degree split point, a parabolic flute geometry, and a web-thinned tapered web configuration that reduces thrust and improves chip evacuation. At 0.316 inches (Letter O) in diameter with a 3-1\/8-inch overall length, it fits standard straight-cylindrical shank chucks and is installed by machinists, maintenance technicians, and tool-room professionals.\u003c\/p\u003e\n\u003cp\u003eThis drill bit is suited for screw machine work and production drilling environments where cycle times and hole quality in tough workpieces are priorities. The Series A1148 designation places it in a universal-performance product line engineered to handle a broad range of base materials including steel, stainless steel, cast iron, and non-ferrous alloys. The parabolic flute profile with a 3xD flute-to-diameter ratio supports efficient chip removal in short-depth drilling applications. Maximum drilling depth is 0.900 inches. Both DIN and ISO standards are referenced for this series, making it compatible with metric and inch-system tooling setups common in North American and European shops.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobalt vanadium high speed steel construction for heat and wear resistance in hard materials\u003c\/li\u003e\n  \u003cli\u003e130-degree split point reduces walking and lowers required thrust at drill entry\u003c\/li\u003e\n  \u003cli\u003eParabolic flute geometry promotes fast chip evacuation and reduces heat buildup\u003c\/li\u003e\n  \u003cli\u003eWeb-thinned tapered web improves centering and extends tool life in interrupted cuts\u003c\/li\u003e\n  \u003cli\u003eStraight-cylindrical shank fits standard drill chucks without adapters\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut with 2 flutes; meets DIN, ISO, and BS specification standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit screw machine length drill bit for standard straight-cylindrical shank chucks. Primary workpiece materials include cast iron, hard materials, non-ferrous metals, stainless steel, and steel. Conforms to DIN, ISO, and BS standards per Series A1148 specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by qualified machinists or toolroom technicians familiar with drill press, CNC, or screw machine setups. Secure the shank fully in the chuck and verify runout before beginning a cut. Always reduce spindle speed and feed rate when transitioning to harder workpiece materials. This bit does not support coolant-through delivery; apply external cutting fluid as required by workpiece material and shop procedure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 0.316 inches (Letter O)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 1-7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 0.900 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\u003eDrill Point Length\u003c\/strong\u003e: 0.0738 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: Parabolic\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: Cobalt Vanadium High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered, Web-Thinned\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 Length Type\u003c\/strong\u003e: Screw Machine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter Tolerance\u003c\/strong\u003e: -0.00087 to 0.00000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Cast Iron, Hard Material, Non-Ferrous Metal, Stainless Steel, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: A1148\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: DIN, ISO, BS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Performance Grade\u003c\/strong\u003e: High Performance, Universal\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: WALTER-TITEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5153728\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER-TITEX","offers":[{"title":"Default Title","offer_id":51740158558514,"sku":"5153728","price":40.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d778e31de38b3101e5d48fe228b3dfd1_11e1d921-27f2-47af-ad1f-cf40922926d4.jpg?v=1788823016","url":"https:\/\/voomisupply.com\/products\/walter-titex-5153728-screw-machine-drill-bit-0-316-in","provider":"Voomi Supply","version":"1.0","type":"link"}