{"product_id":"kennametal-4150243-carbide-stub-drill-bit-7-20-mm","title":"Kennametal 4150243 Carbide Stub Drill Bit 7.20 Mm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4150243 is a screw machine length (stub) carbide drill bit designed for precision hole-making in metalworking and machining applications. Built from solid carbide and coated with a multilayer TiAlN finish at the tip, it delivers extended tool life under demanding cutting conditions. The bit features a 140-degree split point for accurate entry and reduced thrust, a 7.20 mm cutting diameter, and a 79.00 mm overall length. With two regular spiral flutes and a straight cylindrical shank, it is suited for CNC machining centers, drill presses, and screw machine operations where short, rigid tooling is required.\u003c\/p\u003e\u003cp\u003eThis stub-length drill bit is intended for use in metal cutting environments including production machining, job shops, and maintenance operations. Its reduced flute length and rigid body make it especially effective in interrupted cuts and hard materials where longer drills would deflect. The straight shank diameter of 8.00 mm allows secure seating in standard drill chucks and collet holders. It conforms to DIN 6537K specification and falls within the B041A-CPG series from Kennametal.\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\u003eMultilayer TiAlN coating at the tip extends tool life and reduces heat buildup\u003c\/li\u003e\n\u003cli\u003e140-degree standard point angle for reduced thrust and accurate hole entry\u003c\/li\u003e\n\u003cli\u003eStub length design minimizes deflection in short-reach applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting with regular spiral flutes for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eConforms to DIN 6537K specification for consistent dimensional accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard production drill bit for use in CNC machining centers, drill presses, and screw machines that accept straight cylindrical shank tooling in the 6.50 mm to 8.00 mm diameter range.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis drill bit is installed and serviced by machinists and CNC operators. Secure the straight shank firmly in a compatible collet, drill chuck, or toolholder rated for the shank diameter before operation. Power down or lock out the machine spindle before changing tooling. Do not exceed the recommended maximum drilling depth of 29.00 mm in a single pass without clearing chips to prevent tool breakage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 7.20 mm (0.2835 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 79.00 mm (3.1102 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 41.00 mm (1.6142 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Drilling Depth\u003c\/strong\u003e: 29.00 mm (1.1417 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 8.00 mm (0.3150 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 36.00 mm (1.4173 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 140 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Length\u003c\/strong\u003e: 1.21 mm (0.0478 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpiral Type\u003c\/strong\u003e: Regular\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: Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Configuration\u003c\/strong\u003e: Tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Length Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute by Diameter Ratio\u003c\/strong\u003e: 3xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN Multilayer (Tip)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter Tolerance\u003c\/strong\u003e: -0.0006 to 0.0000 inches (-0.015 to 0.000 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecification\u003c\/strong\u003e: DIN 6537K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: B041A-CPG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4150243\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51754445144370,"sku":"4150243","price":118.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/14c654de0b4621f9b424fa983e2e86a1.jpg?v=1788945430","url":"https:\/\/voomisupply.com\/products\/kennametal-4150243-carbide-stub-drill-bit-7-20-mm","provider":"Voomi Supply","version":"1.0","type":"link"}