{"product_id":"wiseman-hss-whit-me-split-dies-model-engineer-whitworth-right-hand-thread","title":"Wiseman HSS WHIT (ME) Split Dies – Model Engineer Whitworth Right Hand Thread","description":"\u003cp data-pm-slice=\"1 3 []\" style=\"text-align: center;\"\u003e\u003cspan\u003eWiseman HSS WHIT (ME) Split Dies are manufactured from High Speed Steel (HSS) and designed for cutting new external Model Engineer (ME) 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 round split dies feature an adjustable design, allowing minor adjustments to the thread fit when used with a suitable die stock. They are particularly useful for model engineering, precision machining, miniature mechanical assemblies and restoration applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eModel Engineer Whitworth threads feature a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e55° Whitworth thread profile\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with rounded crests and roots. The ME thread series commonly uses fine pitches of 32 or 40 threads per inch (TPI), depending on the specified size and application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eThese fine-pitch threads are traditionally used in model steam engines, miniature locomotives, model boilers, small mechanical assemblies and specialist engineering projects where relatively fine threads are required on smaller components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eDesigned for right-hand thread cutting, these split dies are suitable for producing and restoring Model Engineer Whitworth threads on rods, studs, fittings 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\u003eModel Engineer (ME) Thread Form\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Designed for Model Engineer Whitworth 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\u003e55° Whitworth Thread Profile\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Features rounded crests and roots.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFine Thread Pitches\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Commonly available in 32 TPI and 40 TPI configurations.\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 producing new external threads and restoring existing threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eModel Engineering Applications\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e – Particularly useful for miniature machinery and precision components.\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 Model Engineer Whitworth external threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRepairing damaged or worn ME 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\u003eModel steam engine construction and maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMiniature locomotive and railway model engineering.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eModel boiler fittings, where the thread specification and applicable safety requirements permit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrecision engineering and small mechanical assemblies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eManufacturing miniature threaded rods, studs and fittings.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRestoration of vintage model engineering equipment.\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 Model Engineer Whitworth split die diameter and thread pitch. ME threads are commonly specified in 32 TPI or 40 TPI, and the exact pitch must match the intended component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eSecure the die in a compatible 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 a suitable cutting lubricant and rotate the die clockwise to cut the thread. Periodically reverse the die slightly to 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. Check the finished thread using a suitable thread gauge or correctly specified mating component.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eExtra care should be taken when cutting fine threads on small-diameter components to avoid excessive cutting pressure or damage to the workpiece.\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 Model Engineer Whitworth (ME) right-hand external threads.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eFeatures a 55° Whitworth thread profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eCommon ME thread pitches include 32 TPI and 40 TPI.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003cspan\u003eNot interchangeable with BSW, BSF, BSB, BSP, metric or Unified threads unless the complete thread specification matches.\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\u003eSelect the correct nominal diameter and TPI before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan\u003eThread Reference:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Model Engineer Whitworth (ME) thread series.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rennie Tool Company","offers":[{"title":"5\/32\" x 40 WHIT ( ME) (13\/16\" OD)","offer_id":57740558926199,"sku":"D36001","price":31.03,"currency_code":"GBP","in_stock":true},{"title":"3\/16\" x 40 WHIT (ME) (13\/16\" OD)","offer_id":57740558958967,"sku":"D36051","price":31.03,"currency_code":"GBP","in_stock":true},{"title":"7\/32\" x 40 WHIT (ME) (13\/16\" OD)","offer_id":57740558991735,"sku":"D36101","price":31.03,"currency_code":"GBP","in_stock":true},{"title":"1\/4\" x 40 WHIT (ME) (13\/16\" OD)","offer_id":57740559024503,"sku":"D36151","price":31.03,"currency_code":"GBP","in_stock":true},{"title":"9\/32\" x 32 WHIT (ME) (13\/16\" OD)","offer_id":57740559057271,"sku":"D36201","price":31.03,"currency_code":"GBP","in_stock":true},{"title":"5\/16\" x 32 WHIT (ME) (1\" OD)","offer_id":57740559090039,"sku":"D36252","price":34.89,"currency_code":"GBP","in_stock":true},{"title":"5\/16\" x 40 WHIT (ME) (1\" OD)","offer_id":57740559122807,"sku":"D36302","price":34.89,"currency_code":"GBP","in_stock":true},{"title":"3\/8\" x 32 WHIT (ME) (1\" OD)","offer_id":57740559155575,"sku":"D36352","price":34.89,"currency_code":"GBP","in_stock":true},{"title":"3\/8\" x 40 WHIT (ME) (1\" OD)","offer_id":57740559188343,"sku":"D36402","price":34.89,"currency_code":"GBP","in_stock":true},{"title":"7\/16\" x 32 WHIT (ME) (1.5\/16\" OD)","offer_id":57740559221111,"sku":"D36453","price":39.98,"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-whit-me-split-dies-model-engineer-whitworth-right-hand-thread","provider":"Rennie Tool Company","version":"1.0","type":"link"}