{"product_id":"osg-hp255-1563-jobber-drill-bit-5-32-in-solid-carbide","title":"Osg HP255-1563 Jobber Drill Bit 5\/32 in Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG HP255-1563 is a jobber-length, solid carbide drill bit designed for high-performance drilling in ferrous materials. It features a 5\/32-inch (3.97 mm) diameter, a 140-degree R-thinned point for accurate self-centering entry, and a WD1 coating for extended tool life in demanding applications. The straight-cylindrical shank measures 6.00 mm in diameter, and the overall length is 74.00 mm (approximately 2.91 inches) with a flute length of 36.00 mm (approximately 1.42 inches). Two spiral flutes in a regular helix geometry clear chips efficiently during right-hand cutting. This bit is built for trade professionals who need consistent, repeatable hole quality in production or field environments.\u003c\/p\u003e\u003cp\u003eThe HP255-1563 is suited for drilling blind holes, cross holes, and through holes in steel, alloy steel, and cast iron. Its 5xD flute-to-diameter ratio and coolant-through capability make it a practical choice for CNC machining centers, drill presses, and other setups where internal coolant delivery is available. The R-thinned point reduces thrust load at entry, which is especially useful when drilling into interrupted cuts or cross-hole configurations common in fabrication and mechanical contracting work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and heat resistance in ferrous materials\u003c\/li\u003e\n\u003cli\u003eWD1 coating extends tool life and reduces built-up edge on steel and cast iron\u003c\/li\u003e\n\u003cli\u003e140-degree R-thinned point provides self-centering entry and reduced thrust\u003c\/li\u003e\n\u003cli\u003eCoolant-through design supports internal coolant delivery for deep-hole and high-feed applications\u003c\/li\u003e\n\u003cli\u003eRight-hand spiral flutes with regular helix for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eTapered web with R-thinned geometry minimizes chisel edge contact\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003ePrimary workpiece materials are steel, alloy steel, and cast iron (material codes P and K). Designed for tool applications including blind hole drilling, cross hole drilling, general drilling, and self-centering operations in the OSG HP255 series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of carbide drill bits should be performed by qualified machinists or trade professionals familiar with cutting tool setup. Secure the shank fully in the drill chuck or collet before operation and verify runout is within acceptable limits for the application. Always power down and lock out the machine before changing tooling. Avoid side-loading carbide bits, as carbide is brittle and susceptible to fracture under lateral force.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Diameter\u003c\/strong\u003e: 5\/32 inch (3.97 mm \/ 0.1562 inch decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 74.00 mm (approximately 2.91 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 36.00 mm (approximately 1.42 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6.00 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight-Cylindrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: R-Thinned\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 Helix\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: WD1\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\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: +0.004 to +0.016 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Alloy Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Application\u003c\/strong\u003e: Blind Hole, Cross Hole, Drilling, Self-Centering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HP255\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241634\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: OSG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: HP255-1563\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51736992317746,"sku":"HP255-1563","price":87.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/572ef8849892055a6801dc3158bc150f_cc14a750-cd4d-4d64-97e5-9ad142384085.jpg?v=1788782826","url":"https:\/\/voomisupply.com\/products\/osg-hp255-1563-jobber-drill-bit-5-32-in-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}