{"product_id":"kennametal-1544097-m8x1-25-bottoming-hand-tap-hss-6h","title":"Kennametal 1544097 M8x1.25 Bottoming Hand Tap Hss 6H","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1544097 is a straight-flute hand tap designed to cut metric coarse threads in bottoming applications. It produces M8x1.25 internal threads to a 6H class of fit with a D5 thread limit, making it suitable for close-tolerance work where thread accuracy matters. Manufactured from high-speed steel with a bright, uncoated finish, this 4-flute tap has an overall length of 2.72 inches and a thread length of 1.125 inches. The bottoming chamfer allows threading close to the bottom of a blind hole. Machinists, toolroom technicians, and maintenance trades use this tap for hand-tapping operations in cast iron and non-ferrous metals.\u003c\/p\u003e\u003cp\u003eThis tap is intended for use in manual tapping operations on cast iron and non-ferrous metal workpieces where a metric coarse M8x1.25 thread is required. The bottoming chamfer style makes it particularly useful when threads must extend to within one or two pitches of a blind hole bottom, a common requirement in machinery repair, fixture building, and general fabrication. The straight-flute design is well suited to through-holes and shallow blind holes in these material types.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003e4-flute straight-flute geometry optimized for cast iron and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eM8x1.25 metric coarse thread form, 6H class of fit, D5 thread limit\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability in manual tapping\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish — no additional coating to affect thread tolerance\u003c\/li\u003e\n\u003cli\u003eShank diameter of 0.318 inches for standard tap wrench compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard M8x1.25 metric coarse hand tap for use in cast iron and non-ferrous metal workpieces requiring a 6H thread fit with a D5 thread limit.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is designed for hand-tapping operations using a standard tap wrench. Before tapping, ensure the workpiece is securely clamped and the pilot hole is drilled to the correct M8x1.25 recommended tap drill diameter. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tap life. For bottoming taps in blind holes, use a plug or taper tap first to establish the thread before finishing with this bottoming tap.\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 Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 6H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: D5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Straight Flute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.72 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\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: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1544097\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51728859660594,"sku":"1544097","price":36.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5721d770bdbb363f8f23646d46bb2930.jpg?v=1788696999","url":"https:\/\/voomisupply.com\/products\/kennametal-1544097-m8x1-25-bottoming-hand-tap-hss-6h","provider":"Voomi Supply","version":"1.0","type":"link"}