{"product_id":"accusize-tpg221-tin-coated-carbide-inserts-tpgn110304-precision","title":"Accusize TPG221 Tin Coated Carbide Inserts TPGN110304 - Precision","description":"\u003cp\u003eIn this review the Accusize TPG221 tin coated carbide inserts are evaluated for machinists who need small, accurate turning inserts for detailed work. The single biggest reason to buy is the combination of a C5 TiN coating and compact dimensions that deliver longer tool life and consistent finishes when working on tight radii or fine features. These inserts come in a 10-piece box and are engineered to the ISO TPGN110304 profile, which makes them easy to adopt for shops that require predictable, repeatable performance from a triangular positive-rake insert.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Designation:\u003c\/strong\u003e TPGN110304 shape and geometry provide a consistent cutting profile for standard toolholders and help reduce setup guesswork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eC5 TiN Coating:\u003c\/strong\u003e The titanium nitride surface improves wear resistance so cutters keep edge life longer under higher speeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Dimensions:\u003c\/strong\u003e I. C 1\/4' and thickness 1\/8' give a compact, rigid insert suited to small-diameter and detailed turning tasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Corner Radius:\u003c\/strong\u003e Radius 1\/64' allows for tight radii and fine finishes where larger radii would blunt detail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePositive Rake Geometry:\u003c\/strong\u003e Triangular, single-side cutting edges improve chip clearance and produce a cleaner finish with easy indexability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 Pieces Per Box:\u003c\/strong\u003e A ten pack keeps spare inserts on hand for continuous shop work without frequent reordering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThe Accusize TPG221 inserts are best for precision shops, prototype machinists, and hobbyists working on small parts or detailed turning operations who need a hard-wearing coated insert in a compact size. The tiny I. C and 1\/64' corner radius are particularly useful for fine contour work, internal profiling on small diameters, and tooling setups that demand predictable edge form.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include heavy roughing operations or large-diameter production turning where a larger insert and heavier grade would be more efficient; the small size and geometry here are optimized for detail and finish rather than heavy metal removal.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTiN coating extends edge life for faster cutting speeds and improved wear resistance.\u003c\/li\u003e\n\u003cli\u003ePrecise ISO TPGN110304 geometry makes tool changes and indexing straightforward.\u003c\/li\u003e\n\u003cli\u003eCompact I. C and thin profile are ideal for fine detail turning and small fixtures.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSmall size limits heavy stock removal applications and is not intended for roughing large parts.\u003c\/li\u003e\n\u003cli\u003eVery small corner radius may require more frequent indexing on highly abrasive materials to maintain finish.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eTPG221 \/ ISO TPGN110304\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrade and Coating\u003c\/td\u003e\n\u003ctd\u003eC5 Grade TiN Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI. C\u003c\/td\u003e\n\u003ctd\u003e1\/4'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e1\/8'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorner Radius\u003c\/td\u003e\n\u003ctd\u003e1\/64'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePieces per Box\u003c\/td\u003e\n\u003ctd\u003e10 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Accusize TPG221 TPGN110304 insert is a strong value for anyone needing a compact, coated triangular insert for precision turning. With a durable TiN surface, predictable ISO geometry, and a tiny corner radius, it suits fine contouring and small-part work where finish and repeatability matter. It is not intended as a replacement for heavy roughing inserts, but for detail work it delivers reliable performance and reasonable longevity per piece.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAre these inserts indexable?\u003c\/strong\u003e\u003cbr\u003eYes, the triangular TPG221 style has single-side cutting edges that can be rotated for indexing until all usable edges are consumed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the coating?\u003c\/strong\u003e\u003cbr\u003eThe inserts use a titanium nitride (TiN) C5 grade coating for improved wear resistance and longer life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many inserts are in a box?\u003c\/strong\u003e\u003cbr\u003eEach box contains 10 pieces, providing spares for multiple jobs or quick replacements.\u003c\/p\u003e","brand":"Accusize Co., Ltd.","offers":[{"title":"Default Title","offer_id":48677956321499,"sku":"B00O168HNG","price":46.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61j6qppwbiL._SL1500.jpg?v=1778715717","url":"https:\/\/gearmusthave.com\/products\/accusize-tpg221-tin-coated-carbide-inserts-tpgn110304-precision","provider":"GearMustHave","version":"1.0","type":"link"}