{"product_id":"bach-117-trumpet-backbore-warburton-screw-system-3-8-40tpi","title":"Bach | #117 Trumpet Backbore | Warburton Screw System 3\/8\" 40TPI\"","description":"\u003ch3 data-section-id=\"iqdf2t\" data-start=\"0\" data-end=\"57\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"4\" data-end=\"57\"\u003eBach #117 Warburton Screw System Trumpet Backbore\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"59\" data-end=\"393\"\u003eThe Bach–Warburton #117 Backbore is one of the more open, low‑resistance backbores used in the Bach line, and it is commonly found as the standard backbore on “E” cup models like the Bach 7E and similar piccolo‑oriented mouthpieces.\u003c\/p\u003e\n\u003cp data-start=\"395\" data-end=\"968\"\u003eThis backbore’s larger taper and throat design favor easy airflow and freedom, especially in the upper register. Players often describe it as a backbore that helps enhance projection and brightness, while still offering enough core and definition for orchestral or solo contexts. Because it is more open than backbores like #7 or #10, the #117 can make the horn feel more free‑blowing and responsive — particularly helpful on smaller cups or when playing piccolo trumpet.\u003c\/p\u003e\n\u003cp data-start=\"970\" data-end=\"1253\"\u003e\u003cstrong data-start=\"970\" data-end=\"1022\"\u003eWarburton Screw System 3\/8\" 40 TPI Compatibility\u003c\/strong\u003e\u003cbr data-start=\"1022\" data-end=\"1025\"\u003eWe will modify any mouthpiece in our inventory to allow you to mix and match trumpet mouthpiece tops and backbores from your favorite brands. You can pair a Bach backbore with Pickett Brass, Yamaha, Schilke, or Warburton tops.\u003c\/p\u003e\n\u003cp data-start=\"1255\" data-end=\"1343\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1255\" data-end=\"1274\"\u003eImportant Note:\u003c\/strong\u003e Your mouthpiece top and backbore should have a matching throat size.\u003c\/p\u003e","brand":"Bach","offers":[{"title":"Default Title","offer_id":51589825265796,"sku":"BACHBOT117","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/0109\/5812\/files\/bach-standard-trumpet-backbore-silver_bc9ef488-7134-4076-8e92-f5102574577b.jpg?v=1772657121","url":"https:\/\/mouthpieceexpress.com\/products\/bach-117-trumpet-backbore-warburton-screw-system-3-8-40tpi","provider":"Mouthpiece Express.com","version":"1.0","type":"link"}