{"product_id":"somta-series-541-hss-bottom-tap-unc-x-13-tpi","title":"Somta Series 541 - HSS Straight Flute Short Hand Bottom (Finishing) Tap UNC 1\/2\" x 13 TPI","description":"\u003ch1\u003eHSS Bottom Tap UNC ½″ x 13 – Somta Series 541\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eSOMTA 5411273 – ½″ x 13 UNC HSS Bottom Tap\u003c\/strong\u003e is a precision tool designed for cutting full-depth coarse threads in blind holes. With a bottoming chamfer (1–2 threads), it allows threading close to the base of the hole. Manufactured from high-speed steel (HSS), this tap is engineered for durability and consistent thread quality in steel, aluminum, cast iron, and non-ferrous materials. It conforms to Unified National Coarse (UNC) thread standards, making it a reliable choice for general-purpose and structural threading tasks.\u003c\/p\u003e\n\u003ch4\u003eKey Features Benefits\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottoming Chamfer\u003c\/strong\u003e – Enables full thread formation in blind holes with minimal clearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNC Thread Standard\u003c\/strong\u003e – ½″ x 13 TPI for standard coarse-threaded connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight Flute Geometry\u003c\/strong\u003e – Delivers controlled chip flow and clean cutting action.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed Steel (HSS)\u003c\/strong\u003e – Ensures tool strength, wear resistance, and extended life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBright Finish\u003c\/strong\u003e – Reduces friction and improves thread surface finish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHand or Machine Use\u003c\/strong\u003e – Suitable for manual tapping or powered equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart No:\u003c\/strong\u003e 5411273\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e ½″ x 13 TPI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard:\u003c\/strong\u003e UNC – Unified National Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTap Type:\u003c\/strong\u003e Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer:\u003c\/strong\u003e 1–2 threads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Style:\u003c\/strong\u003e Straight flute\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction:\u003c\/strong\u003e Right-hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-Speed Steel (HSS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Bright\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e ANSI \/ Unified Inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eWhy Choose the SOMTA 5411273 UNC Bottom Tap?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for Blind Hole Tapping\u003c\/strong\u003e – Short chamfer design ensures maximum thread depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable HSS Build\u003c\/strong\u003e – Withstands demanding applications and materials.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate Coarse Threading\u003c\/strong\u003e – Meets ANSI UNC standards for dependable fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Usage\u003c\/strong\u003e – Perfect for workshops, structural assembly, and general engineering use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eSOMTA 5411273\u003c\/strong\u003e bottom tap provides reliable, \u003ca href=\"https:\/\/twineagleimports.com.au\/products\/somta-series-541-hss-bottom-tap-unc-5-8-x-11-tpi?pr_prod_strat=e5_desc\u0026amp;pr_rec_id=d95b15f66\u0026amp;pr_rec_pid=10208016728351\u0026amp;pr_ref_pid=10208008306975\u0026amp;pr_seq=uniform\"\u003efull-depth threading in blind holes\u003c\/a\u003e for standard ½″ UNC applications. Its robust design and clean-cutting performance make it a go-to tool for professionals in manufacturing, maintenance, and fabrication.\u003c\/p\u003e","brand":"SOMTA","offers":[{"title":"Default Title","offer_id":51251837239332,"sku":"5411273","price":34.83,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0803\/5598\/3396\/files\/somta-taps-dies-somta-series-541-hss-straight-flute-short-hand-taper-first-tap-unc-2-x-4-5-tpi-7459068464034-1198286375_73390141-3f42-45d6-ab2a-30b70be39ae4.png?v=1786525639","url":"https:\/\/www.layerspecdynamics.com\/de\/products\/somta-series-541-hss-bottom-tap-unc-x-13-tpi","provider":"LayerSpec Dynamics","version":"1.0","type":"link"}