{"product_id":"cleveland-c59421-thread-forming-tap-m3x0-50-6h-bottoming-hss","title":"Cleveland C59421 Thread Forming Tap M3x0.50 6H Bottoming Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C59421 is a bottoming-style thread forming tap designed for creating M3x0.50 metric coarse internal threads in blind holes. Manufactured from high-speed steel (HSS) with a bright, uncoated finish, this tap cold-forms threads rather than cutting them, resulting in stronger thread profiles with no chips to evacuate. It carries a 6H class of fit and a D5 thread limit, making it suitable for precision threading applications where consistent tolerance control is required. Overall length is 1.938 inches with a thread length of 0.625 inches and a shank diameter of 0.141 inches. It is part of Cleveland Series 1092 and is intended for installation by machinists, tool and die makers, and maintenance technicians.\u003c\/p\u003e\u003cp\u003eThe C59421 is suited for blind hole threading in steel, stainless steel, and non-ferrous metals. Its 1-2 thread chamfer length is characteristic of a bottoming tap, allowing threads to be formed as close to the bottom of a blind hole as possible. This makes it particularly useful in precision machining, fixture fabrication, and equipment repair where full thread depth in shallow blind holes is critical. Right-hand thread direction follows standard metric fastener conventions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer with 1-2 thread lead for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003eThread forming design eliminates chips, reducing clogging risk in blind hole applications\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction provides wear resistance across a range of workpiece materials\u003c\/li\u003e\n\u003cli\u003e6H class of fit with D5 thread limit for repeatable tolerance control\u003c\/li\u003e\n\u003cli\u003eCompatible with steel, stainless steel, and non-ferrous metal workpieces\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for use with standard tapping fluids\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for M3x0.50 metric coarse blind hole threading applications in steel, stainless steel, and non-ferrous metals where a bottoming tap geometry and 6H tolerance class are specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a properly sized forming tap drill hole, which differs from a standard cut tap drill — consult a metric thread forming tap drill chart before use. Apply appropriate tapping fluid or cutting oil for the workpiece material; dry threading is not recommended for HSS taps. Secure the workpiece firmly and use a calibrated tap handle or tapping attachment to maintain axial alignment and avoid tap breakage. Always relieve torque and back out the tap periodically if resistance increases.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: M3x0.50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: Metric Coarse\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\u003eChamfer Style\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1-2P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.938 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.110 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: Steel, Stainless Steel, Non-Ferrous Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1092\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: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C59421\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51697021616434,"sku":"C59421","price":41.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/03f8768aea14ce768d7ba1c99a6a92c1.jpg?v=1788348557","url":"https:\/\/voomisupply.com\/products\/cleveland-c59421-thread-forming-tap-m3x0-50-6h-bottoming-hss","provider":"Voomi Supply","version":"1.0","type":"link"}