{"product_id":"accusize-4in-100mm-extension-for-3-4in-weldon-shank-annular-cutter","title":"Accusize 4in\/100mm Extension for 3\/4in Weldon Shank Annular Cutter","description":"\u003cp\u003eIn this review the Accusize 4in\/100mm Extension is evaluated as a simple, purpose-built accessory for users who need extra depth with 3\/4in Weldon shank annular cutters. The bottom line: this extension adds a reliable 4in of reach while preserving the secure Weldon shank connection and alignment needed for deep hole drilling. It is best for machinists and fabricators who already use 3\/4in Weldon cutters and need dependable extended reach rather than a different cutter type.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach:\u003c\/strong\u003e Adds 4in\/100mm to annular cutters to access deeper workpieces without changing cutter type.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Compatibility:\u003c\/strong\u003e Fits 3\/4in Weldon shank annular cutters for seamless integration with existing tooling systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Alignment:\u003c\/strong\u003e Includes a 1\/4in pilot bore to keep the cutter centered and reduce walk during deep drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Construction:\u003c\/strong\u003e Built to withstand demanding machining conditions so it holds up under repeated use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeldon Shank Design:\u003c\/strong\u003e The Weldon flats provide a slip-resistant connection to maintain torque transfer and safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis extension is aimed at professional machinists, metal fabricators, and maintenance shops that routinely drill deep holes and already run 3\/4in Weldon shank annular cutters. It is a practical choice when users need to extend cutter depth without switching machines or cutters.\u003c\/p\u003e\n\u003cp\u003eUsers who do not use 3\/4in Weldon shank tooling, require variable-length extensions, or need integrated coolant channels should look elsewhere; this product is a straightforward mechanical extender rather than a multifunctional adapter.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides a full 4in\/100mm of extra reach for deeper drilling tasks.\u003c\/li\u003e\n\u003cli\u003eSecure Weldon shank connection reduces slippage and maintains torque transfer.\u003c\/li\u003e\n\u003cli\u003e1\/4in pilot bore supports accurate cutter alignment and reduces wandering.\u003c\/li\u003e\n\u003cli\u003eDurable build suited to heavy-duty shop environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOnly compatible with 3\/4in Weldon shank annular cutters, so it is not universal.\u003c\/li\u003e\n\u003cli\u003eDoes not include coolant or chip evacuation features; users must rely on their setup for those functions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eDia. of Inner Hole\u003c\/td\u003e\n\u003ctd\u003e3\/4in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDia. of Pilot Pin\u003c\/td\u003e\n\u003ctd\u003e1\/4in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDia. of Shank\u003c\/td\u003e\n\u003ctd\u003e3\/4in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOAL (Except Shank)\u003c\/td\u003e\n\u003ctd\u003e4in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Shank Type\u003c\/td\u003e\n\u003ctd\u003eWeldon Shank\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Benefit\u003c\/td\u003e\n\u003ctd\u003eExtended reach for deep hole drilling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Accusize 4in\/100mm Extension is a focused, well-built accessory for shops that need extra depth with 3\/4in Weldon shank annular cutters. It offers clear value to users who already own compatible cutters by extending capability without compromising alignment or connection security, making it a practical, cost-effective solution for deep drilling tasks.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this extension fit my cutter?\u003c\/strong\u003e\u003cbr\u003eIt fits annular cutters with a 3\/4in Weldon shank; confirm your cutter shank diameter matches 3\/4in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it provide coolant through the extension?\u003c\/strong\u003e\u003cbr\u003eNo, this extension does not include internal coolant channels; coolant and chip control depend on your machine setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the pilot bore help performance?\u003c\/strong\u003e\u003cbr\u003eThe 1\/4in pilot bore helps center the cutter and reduce lateral movement during deep drilling for more accurate holes.\u003c\/p\u003e","brand":"Accusize Industrial Tools","offers":[{"title":"Default Title","offer_id":48185492701403,"sku":"B09N53SW14","price":36.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41gb2Xj9HOL.jpg?v=1769574309","url":"https:\/\/gearmusthave.com\/products\/accusize-4in-100mm-extension-for-3-4in-weldon-shank-annular-cutter","provider":"GearMustHave","version":"1.0","type":"link"}