{"product_id":"walter-prototyp-7427359-thread-forming-tap-m8x1-25-tin","title":"Walter-prototyp 7427359 Thread Forming Tap M8x1.25 Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WALTER-PROTOTYP 7427359 is a metric thread forming tap designed for cold-forming internal threads without cutting chips. Built from High-Speed Steel-E-PM (powder metallurgy HSS) with a Titanium Nitride (TiN) coating, it delivers extended tool life and reduced friction during the forming process. The tap carries a 6HX class of fit for metric threads and features a modified bottoming chamfer with 2-3 chamfered threads, making it effective in both blind and through-hole applications. With an overall length of 3.5433 inches (90 mm) and a tapping depth of 1.378 inches (35 mm), this tap suits precision threading work in metalworking environments.\u003c\/p\u003e\u003cp\u003eThe 7427359 is used for threading M8x1.25 holes in steel, stainless steel, cast iron, non-ferrous metals, and superalloys. It is suited to both blind-hole and through-hole threading operations in industrial machining, tool rooms, and maintenance environments. The TC420 Supreme series is engineered for demanding material applications where chip-free thread forming is preferred over cutting taps to achieve stronger thread forms.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM8x1.25 metric right-hand thread forming, 6HX class of fit\u003c\/li\u003e\n\u003cli\u003eHigh-Speed Steel-E-PM (powder metallurgy) construction for improved wear resistance\u003c\/li\u003e\n\u003cli\u003eTitanium Nitride (TiN) coating reduces friction and extends service life\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer (2-3 chamfered threads) for blind and through-hole use\u003c\/li\u003e\n\u003cli\u003eCoolant-through design with 5 oil grooves for effective lubrication\u003c\/li\u003e\n\u003cli\u003eCompatible with steel, stainless steel, cast iron, non-ferrous metals, and superalloys\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for M8x1.25 metric thread forming in steel (P), stainless steel (M), cast iron (K), non-ferrous metals (N), and superalloys (S) per material application codes. Suitable for blind-hole and through-hole threading operations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a proper forming tap drill size, which differs from cutting tap drill sizes  -  consult a metric forming tap drill chart before use. A licensed machinist or toolroom technician should set appropriate spindle speed and feed rate for the workpiece material. Apply cutting or forming oil rated for the material being tapped; the coolant-through capability allows flood or through-spindle coolant delivery. Power down the machine and secure the workpiece firmly before loading the tap into the holder.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M8x1.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Metric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 6HX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 2-3P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel-E-PM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.5433 inches (90 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.4724 inches (12 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.378 inches (35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.315 inches (8 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.2441 inches (6.20 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Grooves\u003c\/strong\u003e: 5\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: 3.5xD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: WW60AD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Non-Ferrous Metal, Superalloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: TC420 Supreme\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23241600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WALTER-PROTOTYP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7427359\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALTER","offers":[{"title":"Default Title","offer_id":67905985806642,"sku":"7427359","price":214.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c9ba68e1afc29f8846481f449ddbecbb.jpg?v=1791161556","url":"https:\/\/voomisupply.com\/products\/walter-prototyp-7427359-thread-forming-tap-m8x1-25-tin","provider":"Voomi Supply","version":"1.0","type":"link"}