{"product_id":"value-collection-01378280-size-28-cobalt-screw-machine-drill-bit","title":"Value Collection 01378280 Size 28 Cobalt Screw Machine Drill Bit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 01378280 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal and hard materials. Built from cobalt high-speed steel, it handles heat and wear better than standard HSS bits, making it a reliable choice for production drilling, repair shops, and maintenance work. The 135-degree split point geometry starts on contact without a center punch and reduces walking on hard surfaces. At 1-15\/16 inches overall length, the stub-style body provides rigidity and minimizes deflection in short setups. Decimal size is 0.1405 inches, corresponding to wire gauge size 28.\u003c\/p\u003e\u003cp\u003eThis bit is suited for drilling ferrous metals, stainless steel, cast iron, and other tough materials where heat buildup degrades standard HSS tooling. The screw machine length profile makes it a common choice for drill press work, CNC setups, and manual machining operations where rigidity matters more than reach. The straight shank fits standard three-jaw drill chucks across a wide range of machines. It is sold individually with a minimum order quantity of 12 units.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCobalt construction resists heat buildup during prolonged or high-speed drilling cycles\u003c\/li\u003e\n\u003cli\u003e135-degree split point reduces thrust and eliminates center-punch requirements on most metals\u003c\/li\u003e\n\u003cli\u003eStub screw machine length increases rigidity and reduces bit deflection compared to jobber-length bits\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with standard drill presses, mills, and hand drills\u003c\/li\u003e\n\u003cli\u003eRegular spiral with 2 flutes provides efficient chip evacuation in through-hole drilling\u003c\/li\u003e\n\u003cli\u003eStraight shank fits standard drill chucks without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard screw machine length drill bit for use in any drill press, CNC machining center, or hand drill equipped with a straight-shank chuck capable of accepting a 0.1405-inch diameter tool.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the shank fully in a properly tightened three-jaw chuck before operation. Ensure the workpiece is clamped or fixtured to prevent rotation during drilling. Apply cutting fluid when drilling stainless steel or hardened alloys to extend tool life. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point shows damage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Wire)\u003c\/strong\u003e: 28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Size (Decimal Inch)\u003c\/strong\u003e: 0.1405 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1-15\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 15\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 135 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Split Point\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Straw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Regular Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Type\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Bit Grade\u003c\/strong\u003e: Heavy Duty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 01378280\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51695447507250,"sku":"01378280","price":49.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0015e50e1f1c01b4ca1fe0b3fb8bfb1e.jpg?v=1788335119","url":"https:\/\/voomisupply.com\/products\/value-collection-01378280-size-28-cobalt-screw-machine-drill-bit","provider":"Voomi Supply","version":"1.0","type":"link"}