{"product_id":"precision-twist-drill-5999389-jobber-drill-bit-0-025-in-hss","title":"Precision Twist Drill 5999389 Jobber Drill Bit 0.025 in Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PRECISION TWIST DRILL 5999389 is a jobber-length drill bit designed for general-purpose drilling in metal and cast iron. Built from high speed steel (HSS) with a bright, uncoated finish, it features a standard 118-degree point angle and a right-hand spiral flute that clears chips efficiently during through-hole drilling. The straight-cylindrical shank seats securely in standard drill chucks. At 0.025 inches in diameter, this wire-gauge size 72 bit handles small-diameter work where precision entry is critical. Machinists, tool-and-die workers, and maintenance technicians reach for this bit when drilling pilot holes, clearance holes, or small through-holes in steel and cast iron workpieces.\u003c\/p\u003e\u003cp\u003eThis bit is suited for use in benchtop drill presses, CNC machining centers, and hand-held power drills equipped with a chuck capable of holding a straight shank at this diameter. Its general-purpose grade and ANSI-standard geometry make it a reliable choice for light-duty production and maintenance drilling applications in steel and cast iron. No coolant-through capability is present, so external cutting fluid or dry operation is typical for this size. Sold individually, with a minimum order quantity of 12 units per order.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eWire gauge size 72 at 0.025 inches diameter for small-diameter precision drilling\u003c\/li\u003e\n\u003cli\u003e118-degree standard point angle with web-thinned, tapered web for reduced entry force\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction for durability in steel and cast iron\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish — no coating to flake or build up in tight clearances\u003c\/li\u003e\n\u003cli\u003eRight-hand cut with regular spiral flute for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eANSI-standard geometry; Series R18P general-purpose grade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose jobber-length drill bit compatible with any standard drill chuck or collet system capable of accepting a straight-cylindrical shank at 0.025 inches diameter. Primary workpiece materials are steel and cast iron.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed machinist or maintenance technician should secure the bit firmly in the chuck before operation, verifying zero runout at this small diameter to prevent breakage. Always reduce spindle speed and feed rate appropriately for small-diameter HSS bits in hard materials. Apply external cutting fluid when drilling steel to extend tool life. Inspect the cutting edges before each use — at 0.025 inches diameter, edge chipping is not always visible without magnification.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire Gauge)\u003c\/strong\u003e: 72\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.025 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 118 degrees\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\u003ePoint Type\u003c\/strong\u003e: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Bright, Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 0.3125 inches (5\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.125 inches (1-1\/8 inch)\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: Tapered, Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: R18P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Performance Grade\u003c\/strong\u003e: General Purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 piece\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.042 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: PRECISION TWIST DRILL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5999389\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRECISION TWIST DRILL","offers":[{"title":"Default Title","offer_id":51720525316402,"sku":"5999389","price":54.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/961b0e7206da54b32064ff63d214c6f1.jpg?v=1788565538","url":"https:\/\/voomisupply.com\/products\/precision-twist-drill-5999389-jobber-drill-bit-0-025-in-hss","provider":"Voomi Supply","version":"1.0","type":"link"}