{"product_id":"accupro-4500168-jobber-drill-bit-27-64-inch-solid-carbide","title":"Accupro 4500168 Jobber Drill Bit 27\/64 Inch Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ACCUPRO 4500168 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding applications. Ground to a 27\/64-inch (0.4219 inch) diameter with a 140-degree split point, this drill is built to penetrate hard and abrasive workpiece materials where standard high-speed steel bits fall short. A TiAlN coating reduces heat buildup at the cutting edge and extends tool life in high-cycle production environments. The straight cylindrical shank and regular spiral flute geometry make it compatible with standard drill chucks and CNC tool holders. Coolant-through capability supports chip evacuation and thermal management during deep-hole operations. This bit is sized for trade machinists, tool-and-die professionals, and production drilling technicians.\u003c\/p\u003e\u003cp\u003eThis jobber drill is engineered for stainless steel as its primary workpiece material, where edge retention and heat resistance are critical. The 5xD flute-by-diameter ratio supports deep drilling passes without excessive chip packing. The R-thinned web reduces thrust force at entry, making it well suited for work on austenitic and martensitic stainless grades. It is also applicable to other hard ferrous and non-ferrous materials where a TiAlN-coated carbide tool is the appropriate selection. At 5.875 inches overall length with a 3.469-inch flute length, it fits standard jobber-length chuck clearances on both benchtop and CNC machining centers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and wear resistance in hard-material drilling\u003c\/li\u003e\n\u003cli\u003eTiAlN coating provides oxidation resistance and extends cutting edge life at elevated temperatures\u003c\/li\u003e\n\u003cli\u003e140-degree point angle reduces walking and improves entry accuracy on hard surfaces\u003c\/li\u003e\n\u003cli\u003eR-thinned web lowers required thrust force and improves chip flow at the drill tip\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports chip evacuation and thermal control in deep-hole applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting, regular spiral flute geometry compatible with standard and CNC drill chucks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a jobber-length straight-shank drill bit for use in standard drill chucks and CNC machining center tool holders accepting a 27\/64-inch straight cylindrical shank. Primary intended workpiece material is stainless steel per manufacturer specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this drill bit should be performed by qualified machinists or CNC operators familiar with carbide tooling requirements. Secure the straight shank fully in a collet or chuck to the manufacturer-recommended engagement depth before operation. Carbide is brittle relative to high-speed steel  -  avoid lateral loading, interrupted cuts without proper feed rate adjustment, or dropping the bit on hard surfaces. Always engage coolant-through supply when the machine tool supports it, and verify spindle speed and feed rate are appropriate for the workpiece material and bit diameter before starting the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 27\/64 inch (0.4219 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5-7\/8 inches (5.875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 3-15\/32 inches (3.4688 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 27\/64 inch (0.4219 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight Cylindrical\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: Regular Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: R-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute By Diameter Ratio\u003c\/strong\u003e: 5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Proprietary\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification Designation\u003c\/strong\u003e: ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: 4500168\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ACCUPRO","offers":[{"title":"Default Title","offer_id":51741062496562,"sku":"4500168","price":302.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/feec2a6384ca590867d8ba5c63f162c5.jpg?v=1788829170","url":"https:\/\/voomisupply.com\/products\/accupro-4500168-jobber-drill-bit-27-64-inch-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}