{"product_id":"wiseman-hss-unef-split-dies-unified-extra-fine-right-hand-thread","title":"Wiseman HSS UNEF Split Dies – Unified Extra Fine Right Hand Thread","description":"\u003cp data-pm-slice=\"1 3 []\" style=\"text-align: center;\"\u003e\u003cspan\u003eWiseman HSS UNEF Split Dies are manufactured from High Speed Steel (HSS) and designed for cutting new external UNEF (Unified National Extra Fine) threads, as well as repairing, cleaning and restoring damaged or worn existing threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eThese precision-engineered round split dies feature an adjustable split design, allowing minor adjustments to the thread fit when used with a suitable die stock. This makes them particularly useful for precision engineering, thread cutting, maintenance and specialist workshop applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eUNEF threads feature a 60° thread profile and a finer pitch than UNC (Unified National Coarse) and UNF (Unified National Fine) threads of the same nominal diameter. Unified National Extra Fine threads are commonly specified in precision engineering, automotive, aerospace and specialist machinery applications where fine thread adjustment or limited thread engagement depth is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eManufactured with a right-hand thread profile, these split dies are suitable for producing and restoring UNEF threads on bolts, studs, rods and other externally threaded components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\" style=\"text-align: center;\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh Speed Steel (HSS)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Durable construction for reliable thread cutting and maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eUNEF Thread Form\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Designed for Unified National Extra Fine external threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRight Hand Thread\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Standard clockwise tightening thread direction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAdjustable Split Design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Allows minor adjustment of the thread fit when used with a suitable die stock.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRound Die Construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Designed for use with compatible die stocks and die holders.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThread Cutting \u0026amp; Restoration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Suitable for cutting new external threads and repairing existing threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e60° Thread Profile\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Unified thread form featuring an extra-fine thread pitch.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePrecision Thread Cutting\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Suitable for applications requiring fine-pitch external threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProfessional Quality\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Manufactured by Wiseman Threading Tools for engineering and workshop applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eSuitable for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\" style=\"text-align: center;\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCutting new UNEF external threads on rods, bolts and studs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRepairing damaged or worn UNEF threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCleaning and restoring existing external threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision engineering and workshop machining.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAutomotive and specialist machinery repairs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAerospace maintenance where approved tooling and procedures permit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFabrication and maintenance of fine-pitch threaded components.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eManufacturing replacement bolts and studs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eApplications requiring Unified National Extra Fine threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan\u003eRecommended Use\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eSelect the correct UNEF split die size and pitch to match the required external thread.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eSecure the die in a suitable die stock or holder, ensuring the adjustment screws are correctly positioned. Prepare the workpiece to the appropriate diameter and apply a suitable chamfer to help the die start squarely.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eApply an appropriate cutting lubricant and rotate the die clockwise to cut the thread. Periodically reverse the die slightly to help break and clear chips where appropriate for the material and cutting conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eThe adjustable split design allows minor adjustments to the thread fit. For accurate results, check the finished thread using a suitable thread gauge or mating component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan\u003eImportant\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for UNEF (Unified National Extra Fine) right-hand external threads only.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eNot compatible with UNC, UNF, metric or other thread forms.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eAdjustable round split die for cutting and restoring external threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eRequires a compatible die stock or die holder.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eEnsure the correct thread diameter and threads per inch (TPI) are selected before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rennie Tool Company","offers":[{"title":"1\/4\" x 32 UNEF (13\/16\" OD)","offer_id":57740555387255,"sku":"D23201","price":39.34,"currency_code":"GBP","in_stock":true},{"title":"5\/16\" x 32 UNEF (1\" OD)","offer_id":57740555420023,"sku":"D23212","price":42.72,"currency_code":"GBP","in_stock":true},{"title":"3\/8\" x 32 UNEF (1\" OD)","offer_id":57740555452791,"sku":"D23222","price":54.39,"currency_code":"GBP","in_stock":true},{"title":"7\/16\" x 28 UNEF (1\" OD)","offer_id":57740555485559,"sku":"D23232","price":54.39,"currency_code":"GBP","in_stock":true},{"title":"1\/2\" x 28 UNEF (1.5\/16\" OD)","offer_id":57740555518327,"sku":"D23243","price":63.98,"currency_code":"GBP","in_stock":true},{"title":"9\/16\" x 24 UNEF (1.5\/16\" OD)","offer_id":57740555551095,"sku":"D23253","price":63.98,"currency_code":"GBP","in_stock":true},{"title":"5\/8\" x 24 UNEF (1.1\/2\" OD)","offer_id":57740555583863,"sku":"D23264","price":92.02,"currency_code":"GBP","in_stock":true},{"title":"11\/16\" x 24 UNEF (1.1\/2\" OD)","offer_id":57740555616631,"sku":"D23274","price":92.02,"currency_code":"GBP","in_stock":true},{"title":"3\/4\" x 20 UNEF (1.1\/2\" OD)","offer_id":57740555649399,"sku":"D23284","price":92.02,"currency_code":"GBP","in_stock":true},{"title":"13\/16\" x 20 UNEF (1.1\/2\" OD)","offer_id":57740555682167,"sku":"D23294","price":92.02,"currency_code":"GBP","in_stock":true},{"title":"7\/8\" x 20 UNEF (2\" OD)","offer_id":57740555714935,"sku":"D23305","price":114.4,"currency_code":"GBP","in_stock":true},{"title":"15\/16\" x 20 UNEF (2\" OD)","offer_id":57740555747703,"sku":"D23315","price":114.4,"currency_code":"GBP","in_stock":true},{"title":"1\" x 20 UNEF (2\" OD)","offer_id":57740555780471,"sku":"D23325","price":114.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0067\/9129\/9145\/files\/WisemanSplitDie_1e3d6cb7-6db1-4e70-a26f-cc79305d4ad6.png?v=1788643504","url":"https:\/\/www.rennietool.co.uk\/products\/wiseman-hss-unef-split-dies-unified-extra-fine-right-hand-thread","provider":"Rennie Tool Company","version":"1.0","type":"link"}