{"product_id":"greenfield-328448-m6x1-0-bottoming-hand-tap-4-flute-d5-hss","title":"Greenfield 328448 M6x1.0 Bottoming Hand Tap 4 Flute D5 Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe GREENFIELD 328448 is a straight-flute bottoming hand tap designed for cutting M6x1.0 metric threads in blind hole applications. Built from high-speed steel with a bright finish, it delivers consistent thread quality in cast iron, steel, stainless steel, and non-ferrous materials. The D5 thread limit establishes the allowable tolerance for the finished thread, targeting a 6H class of fit standard in metric threading work. The HTGP series configuration with a 0.255-inch straight shank with square drive is compatible with standard tap wrenches. Overall length is 2.5 inches. This tap is suited for machinists, maintenance technicians, and trade professionals performing metric threading operations by hand.\u003c\/p\u003e\u003cp\u003eThe 328448 is intended for general-purpose metric threading in blind holes where a bottoming chamfer is required to cut threads close to the bottom of a bore. The bottoming chamfer style allows thread cutting to within 1-2 threads of the blind hole base, making it the correct choice when a plug or taper tap cannot reach the required thread depth. Typical applications include repair threading, fixture fabrication, and component assembly across industrial and commercial maintenance settings. This tap is packaged 6 per case, making it practical for shop stocking.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer style for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003eM6x1.0 thread size with D5 thread limit and 6H class of fit\u003c\/li\u003e\n\u003cli\u003e4-flute straight flute geometry for chip management in through and blind holes\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction with bright finish for general-purpose cutting applications\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for standard metric thread production\u003c\/li\u003e\n\u003cli\u003eCompatible with cast iron, steel, stainless steel, and non-ferrous materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard tap wrenches or T-handle drivers accepting a straight shank with square drive. Suitable for M6x1.0 metric threading operations conforming to ground coarse thread standards with a 6H class of fit tolerance.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eHand tapping should be performed by a qualified machinist or maintenance technician using a properly sized tap wrench. Secure the workpiece before beginning and apply appropriate cutting fluid for the material being tapped to reduce heat and improve thread finish. Back the tap off periodically to break chips and prevent tap breakage, particularly in deep blind holes. Never force a tap against resistance — back out and clear chips before continuing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M6x1.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Form\u003c\/strong\u003e: Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Ground Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: D5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 6H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches (63.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 16 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 6.48 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Steel, Stainless Steel, Non-Ferrous Materials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HTGP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasurement System\u003c\/strong\u003e: Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 6 per case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GREENFIELD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 328448\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GREENFIELD","offers":[{"title":"Default Title","offer_id":51525439455538,"sku":"328448","price":18.11,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2b0551a1a2c587ca4eefbdf92d88900d.jpg?v=1785473752","url":"https:\/\/voomisupply.com\/products\/greenfield-328448-m6x1-0-bottoming-hand-tap-4-flute-d5-hss","provider":"Voomi Supply","version":"1.0","type":"link"}